APA (7th ed.) Citation

Sipley, L. W. (1951). A half century of color. Macmillan.

Chicago Style (17th ed.) Citation

Sipley, Louis Walton. A Half Century of Color. New York: Macmillan, 1951.

MLA (9th ed.) Citation

Sipley, Louis Walton. A Half Century of Color. Macmillan, 1951.