एपीए उद्धरण

Williamson, P. R. (2001). Ship manoeuvring principles and pilotage. Witherby.

शिकागो स्टाइल उद्धरण

Williamson, Paul R. Ship Manoeuvring Principles and Pilotage. London: Witherby, 2001.

एमएलए उद्धरण

Williamson, Paul R. Ship Manoeuvring Principles and Pilotage. Witherby, 2001.