APA (7th ed.) Citation

Krumbach, W. (1975). Unser Kullerball. Kinderbuchverlag.

Chicago Style (17th ed.) Citation

Krumbach, Walter. Unser Kullerball. Berlin: Kinderbuchverlag, 1975.

MLA (8th ed.) Citation

Krumbach, Walter. Unser Kullerball. Kinderbuchverlag, 1975.

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