TY  - BOOK
AU  - Mumford,Lewis
TI  - The transformations of man
T2  - World perspectives,
AV  - CB53 .M82
U1  - 901 
PY  - 1956///]
CY  - New York
PB  - Harper
KW  - Civilization
KW  - History
KW  - Man
ER  -