Cita APA (7th ed.)

Fenn, P. T. (1948). The development of the Constitution. D. Appleton-Century Co.

Cita Chicago (17th ed.)

Fenn, Percy Thomas. The Development of the Constitution. New York: D. Appleton-Century Co, 1948.

Cita MLA (9th ed.)

Fenn, Percy Thomas. The Development of the Constitution. D. Appleton-Century Co, 1948.