Earle, J. H. (2000). Graphics for engineers: With AutoCAD release 14 & 2000 (5th ed.). Prentice Hall.
Cita Chicago (17th ed.)Earle, James H. Graphics for Engineers: With AutoCAD Release 14 & 2000. 5th ed. Upper Saddle River, NJ: Prentice Hall, 2000.
Cita MLA (8th ed.)Earle, James H. Graphics for Engineers: With AutoCAD Release 14 & 2000. 5th ed. Prentice Hall, 2000.
Atenció: Aquestes cites poden no estar 100% correctes.