Giesecke, F. E. (2000). Engineering graphics (7th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Giesecke, Frederick Ernest. Engineering Graphics. 7th ed. Upper Saddle River, N.J: Prentice-Hall, 2000.
Lua MLA (9ú heag.)Giesecke, Frederick Ernest. Engineering Graphics. 7th ed. Prentice-Hall, 2000.
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