APA aipamena

RITCHIE, D. A. (1983). Biology / Donald D. Ritchie. Addison Wesley.

Chicago Style aipamena

RITCHIE, Donald A. Biology / Donald D. Ritchie. Addison Wesley, 1983.

MLA aipamena

RITCHIE, Donald A. Biology / Donald D. Ritchie. Addison Wesley, 1983.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.