00464nam a2200157Ia 4500008004100000082001600041100001800057245004500075250000600120260005100126300000800177650004100185650003400226653002900260700001700289170901s1955    xx            000 0 und d  a631.3bM50I  aMcColly, H.F. 0aIntroduction to Agricultural Engineering  a1  aNew YorkbMcGraw Hill Book Company, Inc.c1955  a553  aAgriculture and related technologies  aTechnology (Applied sciences)  aAgricultural engineering  aMartin, J.W.