TY  - BOOK
AU  - "Knipling, E.F."
TI  - Principles of Insect parasitism analysed from new perspctives practical implications for regulating insect population by biological means
U1  - 595.7:632.7  N5 
PY  - 0000///USA
CY  - 1995
PB  - United States Dept. Of Agric.
ER  -