00633cam a22002177a 4500003000500000005001700005008004100022010001000063011001000073035001000083040000900093082001500102100002000117245010200137260003700239300002000276650002900296650002300325710005800348710000900406CHAP20220817043309.0971013s1967            r     00010     d  a70989  a71961  a81515  cCHAP  a634.96bD300aDavidson, A. G. 0aImportant forest insects and diseases of mutual concern to Canadab: The United States and Mexico  aOttawa :bQueen's Printer,c1967  a248 p.b: ilus.14aÁrbolesxEnfermedades.14aÁrbolesxPlagas.0 aCanada. Department of Forestry and Rural Development.0 aFAO.