TY  - BOOK
AU  - Lack David
TI  - Natural regulation of animal numbers
U1  - K:56, J4 
PY  - 1954///
CY  - Oxford
PB  - Clarendon         
KW  -  Animal ecology
KW  -  Animal physiology
KW  - Zoology
N1  - Bibliographical references 281-323p
ER  -