Cita APA (7a ed.)

Morton, G., Henry, J., & Shotter, D. (1983). Unterwegs (2. ed.). Heinemann.

Cita Chicago Style (17a ed.)

Morton, Gabrielle, Judy Henry, y David Shotter. Unterwegs. 2. ed. London: Heinemann, 1983.

Cita MLA (9a ed.)

Morton, Gabrielle, et al. Unterwegs. 2. ed. Heinemann, 1983.