00618nam a22001937a 4500003000500000005001700005008004100022010001100063011001100074035001100085040000900096100001900105245005900124260006000183300001800243490006800261650002700329830006800356CHAP20220329143903.0120605s1968    xxca    r     00010 eng d  a103285  a104257  a114947  cCHAP1 aFlowers, J. F.14aThe cone and barrel-ring scarifiersc/por J.F. Flowers  aToronto, Can. :bDepartment of Lands and Forests,c1968  a6 h. :bilus. 0aSilvicultural notes.pSilviculture section. Timber branchv; 1114aMaquinaria agrícola. 0aSilvicultural notes.pSilviculture section. Timber branchv; 11