APA (7th ed.) Citation

Pick, M., Pícha, J., & Vyskočil, V. (1973). Theory of the earth's gravity field. Elsevier Scientific Pub. Co..

Chicago Style (17th ed.) Citation

Pick, Miloš, Jan Pícha, and Vincenc Vyskočil. Theory of the Earth's Gravity Field. London, New York: Elsevier Scientific Pub. Co., 1973.

MLA (9th ed.) Citation

Pick, Miloš, et al. Theory of the Earth's Gravity Field. Elsevier Scientific Pub. Co., 1973.