E S E Hafez. (1987). reproduction in farm animals (4th.). Lea And Febiger.
Chicago Style aipamenaE S E Hafez. Reproduction in Farm Animals. 4th. Lea And Febiger, 1987.
MLA aipamenaE S E Hafez. Reproduction in Farm Animals. 4th. Lea And Febiger, 1987.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.