| ID | 146565 |
| Call Number | X9(J):2.73.N7/L9/181912 |
| Title Proper | Agricultural productivity : Expanding the limits |
| Language | ENG |
| Author | Lu, Yao-chi ; Quance, Leroy |
| Publication | WAshington, United States Department of Agriculture, 1979. |
| Description | 11p 26 cm |
| Price. Qualification | GIPE Ex |
| Classification Number | X9(J):2.73.N7 |