TY  - BOOK
AU  - Lenski Gerhard
AU  -  Lenski Jean
TI  - Human societies:  An introduction to macrosociology   
SN  - 0070371768
U1  - Y, L0;M2 
PY  - 1982///
CY  - New York
PB  - McGraw-Hill         
KW  - Essays Sociology
ER  -