TY  - BOOK
AU  - Lenski,Gerhard E.
AU  - Lenski,Jean
TI  - Human societies: an introduction to macrosociology 
U1  - 301 
PY  - 1970///
CY  - New York
PB  - McGraw-Hill
KW  - Macrosociology
KW  - Social evolution
N1  - Glossary : p. 492-499; Includes index
ER  -