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Concentrated Feeding Operations
作者
W. Tom Pitts / Rich Drew / W. Kent Ververs / Larimer-Weld Regional Council of Governments / Toups Corporation
出版1977
ISBN
OCLC:24105714
主題
Animal waste
Water Quality Impacts of Irrigated Agriculture in ...
作者
Keith C. Kepler / W. Tom Pitts / W. Kent Ververs / Larimer-Weld Regional Council of Governments / Toups Corporation
出版1977
ISBN
OCLC:26956844
主題
Irrigation
Water Quality Impacts of Irrigated Agriculture in ...
作者
Keith C. Kepler
出版1978
ISBN
OCLC:82725499
主題
Irrigation