APA (7th ed.) Citation

Dietrich, S. (1972). Die unsichtbare Wand. Kinderbuchverlag.

Chicago Style (17th ed.) Citation

Dietrich, Siegfried. Die Unsichtbare Wand. Berlin: Kinderbuchverlag, 1972.

MLA (8th ed.) Citation

Dietrich, Siegfried. Die Unsichtbare Wand. Kinderbuchverlag, 1972.

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