APA

Bingham R. C., . (1969). Economic concepts: a programmed approach. New York: McGraw-Hill.

Chicago

Bingham Robert C, . 1969. Economic concepts: a programmed approach. New York: McGraw-Hill.

Harvard

Bingham R. C., . (1969). Economic concepts: a programmed approach. New York: McGraw-Hill.

MLA

Bingham Robert C, . Economic concepts: a programmed approach. New York: McGraw-Hill. 1969.