Lua APA (7ú heag.)
Bhatt, N. D., & Panchal, V. M. (2006). Elementary engineering drawing: Plane and solid geometry (49th ed.). Charotar Pub.
Lua i Stíl Chicago (17ú heag.)
Bhatt, N. D., agus V. M. Panchal. Elementary Engineering Drawing: Plane and Solid Geometry. 49th ed. Anand: Charotar Pub, 2006.
Lua MLA (9ú heag.)
Bhatt, N. D., agus V. M. Panchal. Elementary Engineering Drawing: Plane and Solid Geometry. 49th ed. Charotar Pub, 2006.
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