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Land capability classification for arable agriculture in Alberta (1987)
W. W. Pettapiece · Alberta Soils Advisory Committee
103 sayfa · 1987
Soils / Land use / Land capability for agriculture
Oral history interviews
Lucy W. Pettapiece · Bureau of Reclamation, Oral History Program
171 sayfa · 2010
Water resources development / Interviews / Reclamation of land / United States / United States. Bureau of Reclamation