Plant protection
632
S584P-1 Sill, Webster H.
Plant protection
-- Ames : Lowa State University , 1982
313756 xiii, 297p.:ill.
Plants, Protection of
Pest control, Integrated
S584P-1 Sill, Webster H.
Plant protection
-- Ames : Lowa State University , 1982
313756 xiii, 297p.:ill.
Plants, Protection of
Pest control, Integrated