La fertilisation des pâturages et des prairies dans les provinces Maritimes Smeltzer, G. G. contributor Canada. Department of Agriculture. contributor text book Ottawa Ministère de l' agriculture 1968 1968
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FRE "Publication 1221". Fertilizers Maritime Provinces Pastures SB208.C3 A5 Publication, 1221 https://www.biodiversitylibrary.org/bibliography/59494 68099518 10.5962/bhl.title.59494 CaOONLG