Etrigan Appearance Key

#The Demon:
- DV1 = The Demon Volume 1 (1972)
- DV2 = The Demon Volume 2 (1987)
- DV3 = The Demon Volume 3 (1990)
- DDO = Demon: Driven Out
- BotD = Blood of the Demon

#Batman:
- B = Batman Vol 1 (1940)
- BF = The Batman Family
- BDK = Batman: The Dark Knight Vol 1 (2011)
- BGK = Batman: Gotham Knights
- BNB = Blackest Night: Batman
- BWG = Batman: The Widening Gyre
- B/D = Batman/Demon
- AALH = Arkham Asylum: Living Hell

#Lobo:
- L = Lobo Vol 2 (1993)
- LB = Lobo’s Back
- L/D =  Lobo/Demon: Hellowe'en
- F&P = Lobo: Bounty Hunting For Fun & Profit

#Justice League:
- JLA97 = JLA (1997)
- JLA = Justice League America Volume 1 (1989)
- JLAV2 = Justice League of America Volume 2 (2006)
- JLE = Justice League Europe
- JLAC = JLA Classified
- JSA = Justice Society of America Vol 3 (2007)
- JLAG = Justice League 80 Page Giant 2011
- JLAPL = JLA Paradise Lost

#Other Characters:
- SV1 = Superman Vol 1 (1939)
- SV2 = Superman Vol 2 (1987)
- AoS = Adventures of Superman (1987)
- WWV2 = Wonder Woman Volume 1 (1942)
- WWV2 = Wonder Woman Volume 2 (1987)
- T = Trinity Vol 1 (2008)
- GAV3 = Green Arrow Vol 3 (2001)
- GAV4 = Green Arrow Vol 4 (2010)
- DF = Doctor Fate Vol 3 (2003)
- BoF = Book of Fate
- ST = Swamp Thing Vol 2 (1982)
- SPCV2 = Spectre Vol 2 (1987)
- SPCV3 = Spectre Vol 3 (1992)
- POS = The Power of SHAZAM!
- F = The Flash Vol 2 (1987)
- SB = Superboy Vol 4 (1994)
- SGRL = Supergirl Vol 4 (1996)
- MM = Martian Manhunter Vol 2 (1998)
- STR = Starman Vol 2 (1994)
- SM = Sandman Vol 2 (1989)
- H = Hitman
- HQ = Harley Quinn Vol 1 (2000)
- SG = Solomon Grundy
- MX = Madame Xanadu Vol 2 (2008)
- BD = Blue Devil
- BG = Booster Gold Vol 1 (1986)
- RM = Resurrection Man Vol 1 (1997)
- A = Anarky Vol 1 (1997)
- O = Orion
- CotU = Challengers of the Unknown Vol 1 (1958)
- SCR = Scare Tactics
- GLCQ = Green Lantern Corps Quarterly
- S6 = Secret Six Vol 3 (2008)
- K = Kobra Vol 1 (1977)
- SP = Shadowpact Vol 1 (2006)
- BoP = Birds of Prey Vol 1 (1999)
- OS = Outsiders Vol 1 (1986)
- AotO = Adventures of the Outsiders
- YJ = Young Justice Vol 1 (1998)
- TT = Team Titans
- LoH = Legion of Superheroes Vol 4 (1989)
- TL = The Legion
- DCUL = DC Universe: Legacies

#Events/Crossovers:
- CoIE = Crisis on Infinite Earths
- IF = Infinite Crisis
- CtIC = Countdown to Infinite Crisis
- FCR = Final Crisis: Requiem
- 52 = 52
- DoJ = Day of Judgement
- DoJ: SF = Day of Judgement: Secret Files
- DoV = Day of Vengeance
- M = Millenium
- FN = Final Night
- BB = Bloodbath
- UU = Underworld Unleashed: Hell’s Sentinel
- RiH = Reign in Hell
- CO = Cosmic Odyssey
- BoM = Books of Magic
- S/B = Superman/Batman
- V&W = Superman & Batman vs Vampires & Werewolves
- HS08 = DCU Halloween Special 2008
- HS10 = DCU Halloween Special 2010
- HB = DCU Holiday Bash

#Other:
- AC = Action Comics Vol 1 (1938)
- DC = Detective Comics (1937)
- B&BV1 = The Brave & The Bold (1955)
- B&BV3 = The Brave & The Bold (2007)
- SC93 = Showcase 1993
- SC96 = Showcase 1996
- SO = Secret Origins Volume 2 (1986)
- SOG = Secret Origins 80 Page Giant 2011
- DCP = DC Comics Presents Vol 1 (1978)
- BRD = DC Blue Ribbon Digest
- WC = Wednesday Comics

#Guidebooks:
- DCE = DC Comics Encyclopaedia
- DCE:UE = DC Comics Encyclopaedia: Updated & Expanded
- UCG = DC Comics: Ultimate Character Guide
- HIS = History of the DCU
- VE = Vertigo Encyclopaedia
- WWDCU = Who’s Who in the DCU Vol 1 (1990)
- DD = The Definitive Directory of the DC Universe
- JLAZ = JLA-Z: A Guide To The World’s Greatest Superheroes
- WWE = Essential Wonder Woman Encyclopaedia
- GASF = Green Arrow Secret Files & Origins
- YJSF = Young Justice Secret Files & Origins
- HSF = DCU Heroes: Secret Files & Origins
- VSF = DCU Villains: Secret Files & Origins