Schmid, C. F., & Schmid, S. E. (1979). Handbook of graphic presentation (2nd ed.). Wiley.
Cita Chicago (17th ed.)Schmid, Calvin F., i Stanton E. Schmid. Handbook of Graphic Presentation. 2nd ed. New York: Wiley, 1979.
Cita MLA (8th ed.)Schmid, Calvin F., i Stanton E. Schmid. Handbook of Graphic Presentation. 2nd ed. Wiley, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.