LEADER 00000nam 2200193 a 4500 001 0597186 003 UkHlHU 007 t 008 002603 2 1940 000 eng 040 UkHlHU 050 4 S 531 M1 100 0 McAtee, W.L. 245 00 Biologic balance on the farm. 300 0000p. 650 0 Agricultural education. 710 2 Smithsonian Institution.
