APA aipamena

Oppenheimer, L., & Oppenheimer, R. (1988). Implications of Cleveland.

Chicago Style aipamena

Oppenheimer, L., and R. Oppenheimer. Implications of Cleveland. 1988.

MLA aipamena

Oppenheimer, L., and R. Oppenheimer. Implications of Cleveland. 1988.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.