TY  - BOOK
TI  - Land preparation to harvesting volume 1 : catalogue of agriculture machinery invemtions and utility models(1976-1978)
SN  - 971-120105-4
U1  - Fil. (R) 631.3 C28 
PY  - 1986///
CY  - Manila
PB  - Goodwill Trading Co., Inc.
ER  -