Dyfyniad APA
Giesecke, F. E. (2012). Technical drawing with engineering graphics (14th ed.). Prentice Hall.
Dyfyniad Arddull Chicago
Giesecke, Frederick E. Technical Drawing with Engineering Graphics. 14th ed. Boston: Prentice Hall, 2012.
Dyfyniad MLA
Giesecke, Frederick E. Technical Drawing with Engineering Graphics. 14th ed. Prentice Hall, 2012.
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