APA

Wright D. M., . (1954). A key to modern economics. New York: Macmillan.

Chicago

Wright David McCord, . 1954. A key to modern economics. New York: Macmillan.

Harvard

Wright D. M., . (1954). A key to modern economics. New York: Macmillan.

MLA

Wright David McCord, . A key to modern economics. New York: Macmillan. 1954.