TY  - BOOK
AU  - Strayer Joseph R
TI  - Mainstream of civilization :  To 1500
SN  - 0155515586 (pbk)
U1  - Y:1, L4 
PY  - 1974///
CY  - New York
PB  - Harcourt Brace USA     
KW  - SOCIOLOGY
ER  -