APA (7th ed.) Citation

Marx, S., & Pfau, W. (1980). Sternwarten der Welt. Herder.

Chicago Style (17th ed.) Citation

Marx, Siegfried, and Werner Pfau. Sternwarten Der Welt. Freiburg [u.a.]: Herder, 1980.

MLA (9th ed.) Citation

Marx, Siegfried, and Werner Pfau. Sternwarten Der Welt. Herder, 1980.

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