Giesecke, F. E. (2000). Engineering graphics (7th edition.). Prentice Hall.
Cita Chicago (17th ed.)Giesecke, Frederick E. Engineering Graphics. 7th edition. Upper Saddle River, New Jersey: Prentice Hall, 2000.
Cita MLA (8th ed.)Giesecke, Frederick E. Engineering Graphics. 7th edition. Prentice Hall, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.