TY  - GEN
AU  - Langer, William Leonard
TI  - The challenge to isolation: the world crisis of 1937-1940 and American foreign policy
AV  - E 744 .L3 
PY  - 1952///
CY  - New York
PB  - Harper Torchbooks
KW  - World War, 1939-1945--United States
KW  - United States--Foreign relations--1933-1945
N1  - Includes bibliographical references
ER  -