Cita APA (7th ed.)

Brock, P. (1982). Die Wunderbrille. Kinderbuchverlag.

Cita Chicago (17th ed.)

Brock, Peter. Die Wunderbrille. Berlin: Kinderbuchverlag, 1982.

Cita MLA (8th ed.)

Brock, Peter. Die Wunderbrille. Kinderbuchverlag, 1982.