APA (7th ed.) Citation

Ballard, J. G. (1967). The crystal world. Berkley Pub. Corp..

Chicago Style (17th ed.) Citation

Ballard, J. G. The Crystal World. New York: Berkley Pub. Corp., 1967.

MLA (9th ed.) Citation

Ballard, J. G. The Crystal World. Berkley Pub. Corp., 1967.