TY  - BOOK
AU  - 
AU  - Messenger,P.S.
TI  - Biological control
T2  - Intext series in ecology
SN  - 0700224335
AV  - SB932 .V36 1973
U1  - 632/.7 
PY  - 1973///]
CY  - New York
PB  - Intext Educational Publishers
KW  - Insect pests
KW  - Biological control
N1  - Includes bibliographies
ER  -