00826nam a2200241 i 45000010008000000030008000080050017000160080041000330100017000740150015000910200010001060400027001160430012001430500015001550820013001702450166001832600060003493000037004095040041004466100034004876500029005217100034005501767839BD-DhUL20150113111759.0761229s1975    onc      b    100 0 eng    a   76379929   aC75-9374-9  c$5.00  aDLCcDLCdDLCdBD-DhUL  an-cn-on00aS401b.A4700a630bAGR00aAgriculture in the whirlpool of change :bpapers presented at the Centennial Symposium, Ontario Agricultural College, University of Guelph, October 17, 18, 1974.  a[Guelph], Ont. :bOntario Agricultural College,cc1975.  aviii, 232 p. :bgraphs ;c24 cm.  aIncludes bibliographical references.20aOntario Agricultural College. 0aAgriculturexCongresses.2 aOntario Agricultural College.