APA (7th ed.) Citation

ScienceDirect (Online service), Rhodes, F. H. T., & Stone, R. O. (1981). Language of the earth. Pergamon Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Frank Harold Trevor Rhodes, and Richard O. Stone. Language of the Earth. New York: Pergamon Press, 1981.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Language of the Earth. Pergamon Press, 1981.