Cita APA (7th ed.)
Bhatt, N. D., & Panchal, V. M. Machine drawing (38th ed.). Charotar Pub.
Cita Chicago (17th ed.)
Bhatt, N. D., i V. M. Panchal. Machine Drawing. 38th ed. Anand,India: Charotar Pub.
Cita MLA (9th ed.)
Bhatt, N. D., i V. M. Panchal. Machine Drawing. 38th ed. Charotar Pub.
Atenció: Aquestes cites poden no estar 100% correctes.