Klassen, J. (2012). I want my hat back (1.ª ed.). Walker Books.
Chicago Style (17th ed.) CitationKlassen, Jon. I Want My Hat Back. 1.ª ed. Walker Books, 2012.
MLA引文Klassen, Jon. I Want My Hat Back. 1.ª ed. Walker Books, 2012.
警告：這些引文格式不一定是100％准確.
APA引文