Cita APA (7a ed.)

Watts, E. F., & Rule, J. T. (1946). Descriptive geometry. Prentice-Hall, inc..

Cita Chicago Style (17a ed.)

Watts, Earle Francis, y John T. Rule. Descriptive Geometry. New York: Prentice-Hall, inc., 1946.

Cita MLA (8a ed.)

Watts, Earle Francis, y John T. Rule. Descriptive Geometry. Prentice-Hall, inc., 1946.