APA (7th ed.) Citation

Illing, W., & Grune, E. (1957). Start in den Himmel (1.- 8. Tausend.). Wunderlich.

Chicago Style (17th ed.) Citation

Illing, Walter, and Edwin Grune. Start in Den Himmel. 1.- 8. Tausend. Leipzig: Wunderlich, 1957.

MLA (8th ed.) Citation

Illing, Walter, and Edwin Grune. Start in Den Himmel. 1.- 8. Tausend. Wunderlich, 1957.

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