na INLIS000000000009092 20220822023635 0010-1118009092 220822 0 ind Food crops vs feed crops: global substitution of grains in production / David Barkin; Rosmary L. Batt; Billie R. De Walt BARKIN, David London : Lynne Rienner Publishers, 1984 xiii, 144 p : ill., ; 23 cm. + lamp. ISBN 1-55587-185-2 633.1/.4 BAR f 633.1/.4 FOOD CROPS FEED CROPS Rosmary L. Batt Billie R. De Walt 761/92