Cita APA (7a ed.)

Rule, J. T., & Coons, S. A. (1961). Graphics.

Cita Chicago Style (17a ed.)

Rule, John T., y Steven A. Coons. Graphics. New York, New York : McGraw-Hill, 1961.

Cita MLA (9a ed.)

Rule, John T., y Steven A. Coons. Graphics. 1961.