Giesecke, F. E., Mitchell, A., Spencer, H. C., Hill, I. L., Dygdon, J. T., Novak, J. E., & Lockhart, S. (2012). Technical drawing with engineering graphics (Fourteenth edition.). Boston :: Prentice Hall,.

Giesecke, Frederick E., Alva Mitchell, Henry Cecil Spencer, Ivan Leroy Hill, John Thomas Dygdon, James E. Novak, and Shawna Lockhart. Technical Drawing With Engineering Graphics. Fourteenth edition. Boston :: Prentice Hall,, 2012.

Giesecke, Frederick E., et al. Technical Drawing With Engineering Graphics. Fourteenth edition. Boston :: Prentice Hall,, 2012.