APA

Brookings Institution W. D., . (1947). Major problems of United States foreign policy. A study guide. Washington, D.C: s.n.

Chicago

Brookings Institution Washington D.C, . 1947. Major problems of United States foreign policy. A study guide. Washington, D.C: s.n.

Harvard

Brookings Institution W. D., . (1947). Major problems of United States foreign policy. A study guide. Washington, D.C: s.n.

MLA

Brookings Institution Washington D.C, . Major problems of United States foreign policy. A study guide. Washington, D.C: s.n. 1947.