Pea diseases and their control
HARTER, L.L
Pea diseases and their control - Washington 1941 - 24p. - U.S.D.A. Farmers' bulletin,no.1735 .
PEAS -- DISEASES AND PESTS
PEAS -- DISEASES AND PESTS
635.656 H37P
Pea diseases and their control - Washington 1941 - 24p. - U.S.D.A. Farmers' bulletin,no.1735 .
PEAS -- DISEASES AND PESTS
PEAS -- DISEASES AND PESTS
635.656 H37P