APA (7th ed.) Citation

Herrmann, D. B. (1990). Entdecker des Himmels. Urania Verlag.

Chicago Style (17th ed.) Citation

Herrmann, Dieter B. Entdecker Des Himmels. Leipzig: Urania Verlag, 1990.

MLA (8th ed.) Citation

Herrmann, Dieter B. Entdecker Des Himmels. Urania Verlag, 1990.

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