Harban singh. (1972). Livestock and poultry production (11th ed.). prentice-hall.
Chicago Style aipamenaHarban singh. Livestock and Poultry Production. 11th ed. prentice-hall, 1972.
MLA aipamenaHarban singh. Livestock and Poultry Production. 11th ed. prentice-hall, 1972.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.