एपीए उद्धरण

Hazeltine,Barrett, & Bull,Christopher. (1999). Appropriate technology: :tools,choices and implications. Academic press.

शिकागो स्टाइल उद्धरण

Hazeltine,Barrett, और Bull,Christopher. Appropriate Technology: :tools,choices and Implications. USA: Academic press, 1999.

एमएलए उद्धरण

Hazeltine,Barrett, और Bull,Christopher. Appropriate Technology: :tools,choices and Implications. Academic press, 1999.