APA (7th ed.) Citation

Winnenburg, W. (1990). Humboldt-Astronomie-Lexikon. Humboldt.

Chicago Style (17th ed.) Citation

Winnenburg, Wolfram. Humboldt-Astronomie-Lexikon. München: Humboldt, 1990.

MLA (9th ed.) Citation

Winnenburg, Wolfram. Humboldt-Astronomie-Lexikon. Humboldt, 1990.

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