APA aipamena

(1987). Parasites of sheep. New Jersey: Merck co.

Chicago Style aipamena

Parasites of Sheep. New Jersey: Merck co, 1987.

MLA aipamena

Parasites of Sheep. New Jersey: Merck co, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.