00560nam a22002177a 4500001001000000003000500010005001700015008004100032010001000073011001000083035001000093040000900103100002500112245003700137250001000174260006800184300002100252490001900273650003100292830001900323000059152CHAP20220329140821.0971013s1938            r     00010     d  a58086  a59058  a63215  cCHAP00aSmith, J. Macgregor.10aSome power problems of the farm.  a3 ed.  a(s.l.) :bUniversity of Alberta, College of Agriculture,c1938.  a38 p. :b: ilus.  aBulletinv; 1714aMecanización agrícola.0 aBulletinv; 17