APA (7th ed.) Citation

Lapwood, E. R., & Usami, T. (1981). Free oscillations of the earth. Cambridge University Press.

Chicago Style (17th ed.) Citation

Lapwood, E. R., and Tatsuo Usami. Free Oscillations of the Earth. Cambridge [Eng.], New York: Cambridge University Press, 1981.

MLA (9th ed.) Citation

Lapwood, E. R., and Tatsuo Usami. Free Oscillations of the Earth. Cambridge University Press, 1981.