TY  - BOOK
AU  - Yoffee, N. (Ed.)
AU  - Yoffee, N. (Ed.) Cowgill, G. L. (Ed.)
TI  - Collapse of ancient states and civilizations
U1  - Y171:1:9xz7 
PY  - 1991///
CY  - Tucson
PB  - Uni. Of Arizona Press
KW  - Y171:1:9xz7
ER  -