$spreadsheetService = new GoogleSpreadsheetSpreadsheetService();
 $spreadsheetFeed = $spreadsheetService->getSpreadsheets();
 $spreadsheet = $spreadsheetFeed->getByTitle(APPLICATION_GOOGLE_SPREADSHEETS_BOOK);
 $worksheetFeed = $spreadsheet->getWorksheets();
 $worksheet = $worksheetFeed->getByTitle(APPLICATION_GOOGLE_SPREADSHEETS_SHEET);

$listFeed = $worksheet->getListFeed(array("sq" => "name = henryhwong", "reverse" => "true"));

$listFeed = $worksheet->getListFeed(array("sq" => "email = henryhwong@gmail.com", "reverse" => "true"));

$listFeed = $worksheet->getListFeed(array("sq" => 'email = "henryhwong@gmail.com"', "reverse" => "true"));

$listFeed = $worksheet->getListFeed(array("sq" => "email" = "henryhwong@gmail.com", "reverse" => "true"));