TY  - BOOK
AU  - Bosch, Robert van den
AU  - Messenger, P.S.
TI  - Biological control
SN  - 0700202307
U1  - 632.9 BOS 
PY  - 1973///
CY  - London
PB  - International Textbook
KW  - Biological control systems
N1  - Includes bibliographical references (p. 156)
ER  -