TY  - BOOK
AU  - Ardrey Robert
TI  - Social contract: a personal inquiry into the evolutionary source of order and
SN  - 0-00-211790-8
U1  - 576.8 
PY  - 1970///
CY  - London
PB  - Collins
KW  - Animal behavior
KW  - Human behavior
KW  - Human evolution
ER  -