Plant-diseases development and control
National Research Council. Agricultural Board..........Pests
Plant-diseases development and control - Washington NAS 1968 - 23cm;205 - Principles of plant and animal pest control,v.1 .
PEST -- DISEASES AND PEST RESISTANCE
PEST -- DISEASES AND PEST RESISTANCE
632.9 N28P
Plant-diseases development and control - Washington NAS 1968 - 23cm;205 - Principles of plant and animal pest control,v.1 .
PEST -- DISEASES AND PEST RESISTANCE
PEST -- DISEASES AND PEST RESISTANCE
632.9 N28P