एपीए उद्धरण

Gupta, R. K. Manufacture of electroplating and metal treatment chemicals: Metal-based chemical industries. Small business publications.

शिकागो स्टाइल उद्धरण

Gupta, R K.,ed. Manufacture of Electroplating and Metal Treatment Chemicals: Metal-based Chemical Industries. Delhi: Small business publications.

एमएलए उद्धरण

Gupta, R K.,ed. Manufacture of Electroplating and Metal Treatment Chemicals: Metal-based Chemical Industries. Small business publications.