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Farm Planning Handbook
Hugh William Thomas Kerr
出版University of Nottingham (Department of Agricultural Economics), 1969
ISBN09005731049780900573101
URLhttp://books.google.com.hk/books?id=XV1BAAAAYAAJ&hl=&source=gbs_api
註釋The gross margin methods; Labour and machinery; Capital; Arable crops; Horticultural crops; Pigs and poultry.