APA

Beard C. A., . (1986). An economic interpretation of the Constitution of the United States. New York: Free Press.

Chicago

Beard Charles Austin, . 1986. An economic interpretation of the Constitution of the United States. New York: Free Press.

Harvard

Beard C. A., . (1986). An economic interpretation of the Constitution of the United States. New York: Free Press.

MLA

Beard Charles Austin, . An economic interpretation of the Constitution of the United States. New York: Free Press. 1986.