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Clubroot of crucifers


Author:
Wellman, Frederick L.
Source:
Technical bulletin (United States. Dept. of Agriculture) ; no. 181 1930
Year:
1930
Subject:
Cruciferae -- Diseases and pests
Format:
32 p. : ill. ; 23 cm.
Publisher:
U.S. Dept. of Agriculture
Collection:
Organic Roots Collection