TY  - BOOK
AU  -  Lenski, Gerhard.
AU  - Lenski, Jean.
TI  - Human societies: a macrolevel introduction to sociology 
SN  - 0070371814
U1  - 301 
PY  - 1987///
CY  - New Delhi
PB  - Tata McGraw Hill
KW  - Social evolution
KW  - Macrosociology
N1  - Includes index
ER  -