APA (7th ed.) Citation

Völk, H. J. (1993). Facetten der Astronomie. Barth.

Chicago Style (17th ed.) Citation

Völk, Heinrich J. Facetten Der Astronomie. Leipzig Berlin Heidelberg: Barth, 1993.

MLA (9th ed.) Citation

Völk, Heinrich J. Facetten Der Astronomie. Barth, 1993.