Bhatt, N. D., & Panchal, V. M. (2001). Engineering drawing: : plane and solid geometry. Charotar Publishing House.
Παραπομπή Chicago StyleBhatt, N D., και V M. Panchal. Engineering Drawing: : Plane and Solid Geometry. Anand: Charotar Publishing House, 2001.
Παραπομπή MLABhatt, N D., και V M. Panchal. Engineering Drawing: : Plane and Solid Geometry. Charotar Publishing House, 2001.
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