एपीए उद्धरण

Bhatt, N. D. (1981). Machine drawing (17th ed.). Charotar Publishing House.

शिकागो स्टाइल उद्धरण

Bhatt, N D. Machine Drawing. 17th ed. Anand: Charotar Publishing House, 1981.

एमएलए उद्धरण

Bhatt, N D. Machine Drawing. 17th ed. Charotar Publishing House, 1981.