Simons, M.D. 1925-

Crown rust of oats and grasses / M. D. Simons - St. Paul, Minn. : American Phytopathological Society, 1970 - 47 p. : ill., col. plates ; 26 cm. - American Phytopathological Society Mongoraph no.5 .

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Oats--Diseases and pests
Grasses--Diseases and pests