APA

Beard Charles A,, . (1960). An economic interpretation of the constitution of United States. New York: Macmillan Publishing Co.

Chicago

Beard Charles A,, . 1960. An economic interpretation of the constitution of United States. New York: Macmillan Publishing Co.

Harvard

Beard Charles A,, . (1960). An economic interpretation of the constitution of United States. New York: Macmillan Publishing Co.

MLA

Beard Charles A,, . An economic interpretation of the constitution of United States. New York: Macmillan Publishing Co. 1960.