एपीए उद्धरण

Clark, R. N. (1990). Visual astronomy of the deep sky. Cambridge University Press.

शिकागो स्टाइल उद्धरण

Clark, Roger N. Visual Astronomy of the Deep Sky. Cambridge: Cambridge University Press, 1990.

एमएलए उद्धरण

Clark, Roger N. Visual Astronomy of the Deep Sky. Cambridge University Press, 1990.