Plant protection for human welfare
International Congress of Plant Protection, 10th, Brighton,
Plant protection for human welfare - Brighton 1983 - 25cm;3v
PLANT DISEASES -- CONTROL -- CONGRESSES
PLANT DISEASES -- CONTROL -- CONGRESSES
632.9 I-5P
Plant protection for human welfare - Brighton 1983 - 25cm;3v
PLANT DISEASES -- CONTROL -- CONGRESSES
PLANT DISEASES -- CONTROL -- CONGRESSES
632.9 I-5P