Cita APA (7a ed.)

Killen, M., & Smetana, J. G. (2006). Handbook of moral development. Lawrence Erlbaum.

Cita Chicago Style (17a ed.)

Killen, Melanie, y Judith G. Smetana. Handbook of Moral Development. Mahwah, New Jersey [etc.]: Lawrence Erlbaum, 2006.

Cita MLA (9a ed.)

Killen, Melanie, y Judith G. Smetana. Handbook of Moral Development. Lawrence Erlbaum, 2006.