Ecological effect of pesticides
PERRING, F. H
Ecological effect of pesticides - London 1977 - 193p - Linnean society symposium series, no. 5 .
PESTICIDES
INSECTS, INJURIOUS AND BENEFICIAL PEST CONTROL PESTICIDES
632.7 S99E
Ecological effect of pesticides - London 1977 - 193p - Linnean society symposium series, no. 5 .
PESTICIDES
INSECTS, INJURIOUS AND BENEFICIAL PEST CONTROL PESTICIDES
632.7 S99E