TY  - BOOK
AU  - Marcovitch, S
TI  - Supplementary investigations of the fluosilicates as insecticides: with observations on the effect of heat and drought on the mexican bean beetle  
CY  - Knoxville, Tennessee
PB  -  Agricultural Experiment Station
KW  - Epilachna varivestis  Frijol
KW  -  Plagas
ER  -