TY - BOOK AU - Bishop,Douglas D. TI - Crop science and food production SN - 0070054312 AV - SB91 .C78 1983 U1 - 631 19 PY - 1983/// CY - New York PB - Gregg Division, McGraw-Hill KW - Agriculture KW - Food crops KW - Food industry and trade N1 - Includes index ER -