APA

Buck P. W., Travis M. B. 1., . (1957). Control of foreign relations in modern nations. New York: W. W. Norton.

Chicago

Buck Philip Wallenstein, Travis Martin Bice 1917, . 1957. Control of foreign relations in modern nations. New York: W. W. Norton.

Harvard

Buck P. W., Travis M. B. 1., . (1957). Control of foreign relations in modern nations. New York: W. W. Norton.

MLA

Buck Philip Wallenstein, Travis Martin Bice 1917, . Control of foreign relations in modern nations. New York: W. W. Norton. 1957.