APA (7th ed.) Citation

ScienceDirect (Online service), Smelser, N. J., & Baltes, P. B. (2001). International encyclopedia of the social & behavioral sciences. Elsevier.

Chicago Style (17th ed.) Citation

ScienceDirect (Online service), Neil J. Smelser, and Paul B. Baltes. International Encyclopedia of the Social & Behavioral Sciences. Amsterdam ; New York: Elsevier, 2001.

MLA (8th ed.) Citation

ScienceDirect (Online service), et al. International Encyclopedia of the Social & Behavioral Sciences. Elsevier, 2001.