APA

Smith M. B., . (1993). The language of trade. New York: Office of International Information Progras.

Chicago

Smith Michael B, . 1993. The language of trade. New York: Office of International Information Progras.

Harvard

Smith M. B., . (1993). The language of trade. New York: Office of International Information Progras.

MLA

Smith Michael B, . The language of trade. New York: Office of International Information Progras. 1993.