APA

Towle L. W., . (1956). International trade and commercial policy. New York: Harper.

Chicago

Towle Lawrence William, . 1956. International trade and commercial policy. New York: Harper.

Harvard

Towle L. W., . (1956). International trade and commercial policy. New York: Harper.

MLA

Towle Lawrence William, . International trade and commercial policy. New York: Harper. 1956.