APA (7th ed.) Citation

Veken, K. (1974). Der Kellerschlüssel. Kinderbuchverlag.

Chicago Style (17th ed.) Citation

Veken, Karl. Der Kellerschlüssel. Berlin: Kinderbuchverlag, 1974.

MLA (8th ed.) Citation

Veken, Karl. Der Kellerschlüssel. Kinderbuchverlag, 1974.

Warning: These citations may not always be 100% accurate.