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Burley tobacco in Ontario : production costs, returns and management practices

G. S. NelsonOntario. Farm Economics, Co-operatives and Statistics BranchB. H. Tolton

出版	Farm Economics, Co-operatives and Statistics Branch, Ontario Department of Agriculture and Food, 1967
URL	http://books.google.com.hk/books?id=ccM9AAAAYAAJ&hl=&source=gbs_api