APA (7th ed.) Citation

ScienceDirect (Online service), Blount, B. G., & Sanches, M. (1977). Sociocultural dimensions of language change. Academic Press.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Ben G. Blount, and Mary Sanches. Sociocultural Dimensions of Language Change. New York: Academic Press, 1977.

MLA (9th ed.) Citation

ScienceDirect (Online service), et al. Sociocultural Dimensions of Language Change. Academic Press, 1977.