Cita APA (7th ed.)
Dhawan, R. K. (1997). A Textbook of engineering drawing: Geometrical drawing. S. Chand.
Cita Chicago (17th ed.)
Dhawan, R. K. A Textbook of Engineering Drawing: Geometrical Drawing. New Delhi: S. Chand, 1997.
Cita MLA (9th ed.)
Dhawan, R. K. A Textbook of Engineering Drawing: Geometrical Drawing. S. Chand, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.