APA (7th ed.) Citation

Ball, R. H., Kahle, A. B., & Vestine, E. H. (1968). On the determination of surface motions of the earth's core. Rand Corp..

Chicago Style (17th ed.) Citation

Ball, Richard Henry, Anne B. Kahle, and E. H. Vestine. On the Determination of Surface Motions of the Earth's Core. Santa Monica, Calif.: Rand Corp., 1968.

MLA (9th ed.) Citation

Ball, Richard Henry, et al. On the Determination of Surface Motions of the Earth's Core. Rand Corp., 1968.