TY  - BOOK
AU  - Cox, David
TI  - Challenge and promise 1930 to the present 
SN  - 0-471-18263-X
U1  - 973 C351 1969 
PY  - 1969///
CY  - New York : 
PB  - John Wiley and Sons, Inc., 
KW  - United States - History - Challenge and Promise
ER  -