TY  - GEN
AU  - BROWN, A W A
AU  - BYERLY, T C
AU  - GIBBS, M
AU  - SAN PIETRO, A
TI  - CROP PRODUCTIVITY- RESEARCH IMPERATIVES
U1  - 633 BRO/CR 
CY  - OHIO, CHARLES F KETTERING FOUNDATION YELLOW SPRINGS
KW  - WORLD PRODUCTIVITY
ER  -