5 1 10 Farm machinery Harris, A.G Primary Author mixed material London Oxford University Press 1974 Farm implements for arid and tropical regions Hopfen, H.J Primary Author mixed material 9251015279 ROME Food And Agriculture Oganization Of The United aions 1969 FARM MACHINERY Culpin Claude Additional Author mixed material 0246115394 New York Granada 1981 010012003.jpg Farm machines and equipment Nakra, C.P. Primary Author mixed material NAI SARAK DHANPAT RAI & SONS 1980 010011765.jpg Farm machinery and equipment Smith Primary Author Wilkes Primary Author mixed material New Delhi South-Western 1978