TY - BOOK AU - North,Mack O. AU - Bell,Donald D. TI - Commercial chicken production manual AV - SF487 N67 1990 PY - 1990/// CY - New York PB - Van Nostrand Reinhold KW - Chickens KW - Handbooks, manuals, etc N1 - Includes bibliographical references (p. 889-891) and index ER -