Cita APA

Bell, R. W., & Smotherman, W. P. (1980). Maternal influences and early behavior. New York: SP Medical & Scientific Books.

Chicago Style Citation

Bell, Robert Wayne, i William P. Smotherman. Maternal Influences and Early Behavior. New York: SP Medical & Scientific Books, 1980.

Cita MLA

Bell, Robert Wayne, i William P. Smotherman. Maternal Influences and Early Behavior. New York: SP Medical & Scientific Books, 1980.