Handbook of Energy CropsJames A. Duke. 1983. unpublished.
Rutabaga: Alternative Field Crops Manual, University of Wisconson Cooperative Extension Service, University of Minnesota Extension Service, Center for Alternative Plant & Animal Products
Magness, J.R., G.M. Markle, C.C. Compton. 1971. Food and feed crops of the United States.
Rapeseed, Rapeseed Oil, Canola
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