Mark Pattison & Paul F McMullin. (2008). Poultry diseases (6th.). Edinburg.
Chicago Style aipamenaMark Pattison and Paul F McMullin. Poultry Diseases. 6th. Edinburg, 2008.
MLA aipamenaMark Pattison and Paul F McMullin. Poultry Diseases. 6th. Edinburg, 2008.
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