TY  - BOOK
AU  - 
AU  - 
AU  - Lodos, N.
AU  - Whellan, J. A.
TI  - Biological control programmes against insects and weeds in Canada: 1959 - 1968
U1  - 632.960971 
PY  - 1971///
CY  - Slough
PB  - Commonwealth agricultural Bureaux
ER  -