TY  - BOOK
AU  - Leopold,Richard W.
AU  - Link,Arthur S.
TI  - Problems in American history
U1  - 973 
PY  - 1957///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - United States
KW  - History
KW  - Sources
ER  -