APA (7th ed.) Citation

Calk, J. P. (1959). The perspective universe: An astrophysical study of the planetary system ([1st ed.].). Exposition Press.

Chicago Style (17th ed.) Citation

Calk, James P. The Perspective Universe: An Astrophysical Study of the Planetary System. [1st ed.]. New York: Exposition Press, 1959.

MLA (9th ed.) Citation

Calk, James P. The Perspective Universe: An Astrophysical Study of the Planetary System. [1st ed.]. Exposition Press, 1959.