APA-referens (7:e uppl.)
ebrary, Inc, & O'Grady, P. F. (2005). Meet the philosophers of ancient Greece: Everything you always wanted to know about ancient Greek philosophy but didn't know who to ask. Ashgate Pub..
Chicago-referens (17:e uppl.)
ebrary, Inc, och Patricia F. O'Grady. Meet the Philosophers of Ancient Greece: Everything You Always Wanted to Know About Ancient Greek Philosophy but Didn't Know Who to Ask. Aldershot, Hants, England ; Burlington, VT: Ashgate Pub., 2005.
MLA-referens (9:e uppl.)
ebrary, Inc, och Patricia F. O'Grady. Meet the Philosophers of Ancient Greece: Everything You Always Wanted to Know About Ancient Greek Philosophy but Didn't Know Who to Ask. Ashgate Pub., 2005.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.