Cita APA (7a ed.)

Richardson, H. J., & Richardson, H. J. (1969). Adolescent girls in approved schools. Routledge & Keagan Paul.

Cita Chicago Style (17a ed.)

Richardson, Helen J., y Helen Jane Richardson. Adolescent Girls in Approved Schools. London [u.a.]: Routledge & Keagan Paul, 1969.

Cita MLA (8a ed.)

Richardson, Helen J., y Helen Jane Richardson. Adolescent Girls in Approved Schools. Routledge & Keagan Paul, 1969.