B Hafez. (2000). Reproduction in farm animals (7th.). Lippincott williams&Wilkins.
Chicago-stil citatB Hafez. Reproduction in Farm Animals. 7th. Lippincott williams&Wilkins, 2000.
MLA-referensB Hafez. Reproduction in Farm Animals. 7th. Lippincott williams&Wilkins, 2000.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.