Giesecke, F. E. (2009). Technical drawing (13th ed.). Pearson Prentice Hall.
Cita Chicago (17th ed.)Giesecke, Frederick E. Technical Drawing. 13th ed. Upper Saddle River, N.J.: Pearson Prentice Hall, 2009.
Cita MLA (8th ed.)Giesecke, Frederick E. Technical Drawing. 13th ed. Pearson Prentice Hall, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.