Cita APA

Sierra, L. R. d. l., & Schachter, J. (2013). The late teenage years: From seventeen to adulthood. London: Karnac.

Citación estilo Chicago

Sierra, Luis Rodriguez de la., and Joan Schachter. The Late Teenage Years: From Seventeen to Adulthood. London: Karnac, 2013.

Cita MLA

Sierra, Luis Rodriguez de la., and Joan Schachter. The Late Teenage Years: From Seventeen to Adulthood. London: Karnac, 2013.