APA (7th ed.) Citation

Letsch, H. (1953). Das Zeiss - Planetarium. Gustav Fischer.

Chicago Style (17th ed.) Citation

Letsch, Heinz. Das Zeiss - Planetarium. Jena: Gustav Fischer, 1953.

MLA (8th ed.) Citation

Letsch, Heinz. Das Zeiss - Planetarium. Gustav Fischer, 1953.

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