Giesecke, F. E., Mitchell, A., Spencer, H. C., Hill, I. L., Dygdon, J. T., & Novak, J. E. (1991). Technical drawing (9th ed.). New York: Macmillan Publishing Co..

Giesecke, Frederick E., Alva Mitchell, Henry Cecil Spencer, Ivan Leroy Hill, John Thomas Dygdon, and James E. Novak. Technical Drawing. 9th ed. New York: Macmillan Publishing Co., 1991.

Giesecke, Frederick E., et al. Technical Drawing. 9th ed. New York: Macmillan Publishing Co., 1991.