Shepard, arold H
Chemistry and actionof insecticides - New York, Mc Graw- Hill Book Company Inc 1951 - 504
Insecticides-chemical aspects/synthetic organic insecticides
632. 951 SHE
100
Chemistry and actionof insecticides - New York, Mc Graw- Hill Book Company Inc 1951 - 504
Insecticides-chemical aspects/synthetic organic insecticides
632. 951 SHE
100