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Monograph on Downy Mildew of Crucifers
G. S. Saharan, Canada. Agriculture and Agri-Food Canada. Research Branch, P. R. Verma, N. I. Nashaat, Saskatoon Research Centre (Canada) · Saskatoon, Sask. : Research Branch, Agriculture and Agri-Food Canada
208 sayfa · 1997
Cruciferae