APA

Knauth O. D., . (1960). U.S. foreign policy in a changing world. Washington: National Planning Association.

Chicago

Knauth Oliver D, . 1960. U.S. foreign policy in a changing world. Washington: National Planning Association.

Harvard

Knauth O. D., . (1960). U.S. foreign policy in a changing world. Washington: National Planning Association.

MLA

Knauth Oliver D, . U.S. foreign policy in a changing world. Washington: National Planning Association. 1960.