Franklin

MLA

Smelser, Neil J, and Paul B Baltes. International Encyclopedia of the Social & Behavioral Sciences. Amsterdam: Elsevier, 2001.

APA

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

Chicago

Smelser, Neil J., and Paul B Baltes. International Encyclopedia of the Social & Behavioral Sciences. Amsterdam: Elsevier, 2001.