APA (7th ed.) Citation

Elkind, D., Davidson, H. F., & Davidson, J. (1999). Adolescent cognition. Davidson Films, Inc..

Chicago Style (17th ed.) Citation

Elkind, David, Hannah Frances Davidson, and John Davidson. Adolescent Cognition. San Luis Obispo, CA: Davidson Films, Inc., 1999.

MLA (9th ed.) Citation

Elkind, David, et al. Adolescent Cognition. Davidson Films, Inc., 1999.