एपीए उद्धरण

Bhatt, N. D. (1993). Elementary engineering drawing. Anand.

शिकागो स्टाइल उद्धरण

Bhatt, N D. Elementary Engineering Drawing. Charotar: Anand, 1993.

एमएलए उद्धरण

Bhatt, N D. Elementary Engineering Drawing. Anand, 1993.