Bhatt/Panchal. (1997). Geometrial &Machine Drawing. Charotar.
Cita Chicago Style (17a ed.)Bhatt/Panchal. Geometrial &Machine Drawing. Anand: Charotar, 1997.
Cita MLA (9a ed.)Bhatt/Panchal. Geometrial &Machine Drawing. Charotar, 1997.
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