एपीए उद्धरण

Bhatt, N. D. (1980). Elementary engineering drawing (16.). Charotar publishing house.

शिकागो स्टाइल उद्धरण

Bhatt, N D. Elementary Engineering Drawing. 16. Anand: Charotar publishing house, 1980.

एमएलए उद्धरण

Bhatt, N D. Elementary Engineering Drawing. 16. Charotar publishing house, 1980.