TY  - GEN
AU  - Lenski, Gerhard Emmanuel.
AU  - Lenski, Jean; Noland, Patrick
TI  - Human societies: an introduction to macrosociology
AV  - HM51 Len.
PY  - 1991///
PB  - McGraw-Hill
KW  - Macrosociology
KW  - Social evolution
KW  - Social systems - History
N1  - 1994
ER  -