Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

Rule, John Thomas, i Stevens A. Coons. Graphics. New York: McGraw-Hill, 1961.

Cita MLA (9th ed.)

Rule, John Thomas, i Stevens A. Coons. Graphics. McGraw-Hill, 1961.