North, Mack O. Commercial chicken production manual - 3 ed. - Westport, Conn : Avi, 1984 - 710 p. : ilus.; gráfs. - Animal science textbook series . - Animal science textbook series . LCCN: 62825 Subjects--Topical Terms: Aves de corral.Avicultura. Dewey Class. No.: 636.5 / N67 1984