Gill,P S. (2011). Machine Drawing. Kataria.
Cita Chicago (17th ed.)Gill,P S. Machine Drawing. Delhi: Kataria, 2011.
Cita MLA (9th ed.)Gill,P S. Machine Drawing. Kataria, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)