Clapp, J. (1974). Professional ethics and insignia. Scarecrow Press.
Chicago Style aipamenaClapp, Jane. Professional Ethics and Insignia. Metuchen, N.J: Scarecrow Press, 1974.
MLA aipamenaClapp, Jane. Professional Ethics and Insignia. Scarecrow Press, 1974.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.