Giesecke, F. E. (2012). Technical drawing with engineering graphics (14th International ed.). Prentice Education International.
Chicago-referens (17:e uppl.)Giesecke, Frederick E. Technical Drawing with Engineering Graphics. 14th International ed. Upper Saddle River, N.J: Prentice Education International, 2012.
MLA-referens (9:e uppl.)Giesecke, Frederick E. Technical Drawing with Engineering Graphics. 14th International ed. Prentice Education International, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.