Cita APA (7a ed.)

Petrill, S. A. (2003). Nature, nurture, and the transition to early adolescence. Oxford University Press.

Cita Chicago Style (17a ed.)

Petrill, Stephen A. Nature, Nurture, and the Transition to Early Adolescence. Oxford ; New York: Oxford University Press, 2003.

Cita MLA (9a ed.)

Petrill, Stephen A. Nature, Nurture, and the Transition to Early Adolescence. Oxford University Press, 2003.