APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Clark, Roger N. Visual Astronomy of the Deep Sky. Cambridge ; New York : Cambridge, Mass.: Cambridge University Press ; Sky Pub. Corp., 1990.

MLA (9th ed.) Citation

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