APA (7th ed.) Zitazioa
Dhawan, R. K. (1997). A Textbook of engineering drawing: Geometrical drawing. S. Chand.
Chicago Style (17th ed.) Zitazioa
Dhawan, R. K. A Textbook of Engineering Drawing: Geometrical Drawing. New Delhi: S. Chand, 1997.
MLA (9th ed.) Zitazioa
Dhawan, R. K. A Textbook of Engineering Drawing: Geometrical Drawing. S. Chand, 1997.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.