APA (7th ed.) Zitazioa
Chappell, E. (2011). AutoCAD civil 3D essentials. Wiley Pub..
Chicago Style (17th ed.) Zitazioa
Chappell, Eric. AutoCAD Civil 3D Essentials. San Francisco, Calif.: Wiley Pub., 2011.
MLA (9th ed.) Zitazioa
Chappell, Eric. AutoCAD Civil 3D Essentials. Wiley Pub., 2011.
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