APA aipamena

Stephens, G. C., & Best North, B. (1974). Biology. John Wiley and Sons.

Chicago Style aipamena

Stephens, Grover C., and Barbara Best North. Biology. NewYork: John Wiley and Sons, 1974.

MLA aipamena

Stephens, Grover C., and Barbara Best North. Biology. John Wiley and Sons, 1974.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.