APA aipamena

Pettijohn, T. F. (1994). Sources. Dushkin Pub. Group.

Chicago Style aipamena

Pettijohn, Terry F. Sources. Guilford, Conn.: Dushkin Pub. Group, 1994.

MLA aipamena

Pettijohn, Terry F. Sources. Dushkin Pub. Group, 1994.