Cita APA (7a ed.)

Härtling, P. (1985). Alter John. Kinderbuchverlag.

Cita Chicago Style (17a ed.)

Härtling, Peter. Alter John. Berlin: Kinderbuchverlag, 1985.

Cita MLA (8a ed.)

Härtling, Peter. Alter John. Kinderbuchverlag, 1985.