Παραπομπή APA

B W Calnak, B W CALNEK, & H John Marnes. (1994). Diseases of poultry (9.). AMES.

Παραπομπή Chicago Style

B W Calnak, B W CALNEK, και H John Marnes. Diseases of Poultry. 9. AMES, 1994.

Παραπομπή MLA

B W Calnak, et al. Diseases of Poultry. 9. AMES, 1994.