Cita APA (7a ed.)

Kerfoot, M., & Butler, A. (1988). Problems of childhood and adolescence (1. publ.). Macmillan Education.

Cita Chicago Style (17a ed.)

Kerfoot, Michael, y Alan Butler. Problems of Childhood and Adolescence. 1. publ. Basingstoke [u.a.]: Macmillan Education, 1988.

Cita MLA (9a ed.)

Kerfoot, Michael, y Alan Butler. Problems of Childhood and Adolescence. 1. publ. Macmillan Education, 1988.