TY  - BOOK
AU  - Langer, William L.
AU  - Gleason, S. Everett
TI  - The challenge to isolation, 1937-1940
T2  - Their The world crisis and American foreign policy
U1  - 327.73917 
PY  - 1952///
CY  - New York
PB  - Published for the Council on Foreign Relations by Harper
KW  - World War, 1939-1945
KW  - United States
KW  - Diplomatic history
KW  - Foreign relations
KW  - 1933-1945
N1  - Includes bibliographical References and index
ER  -