TY  - BOOK
AU  - Beers, Burton F.
TI  - World history patterns of civilization 
SN  - 0-13-967886-7
U1  - 909 B415 1984 
PY  - 1984///
CY  - Englewood Cliffs : 
PB  - Prentice-Hall, Inc., 
KW  - World History
ER  -