एपीए उद्धरण

Blewitt, M. (1973). Celestial navigation for yachtsmen (5th ed.). Stanford.

शिकागो स्टाइल उद्धरण

Blewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. London: Stanford, 1973.

एमएलए उद्धरण

Blewitt, Mary. Celestial Navigation for Yachtsmen. 5th ed. Stanford, 1973.