APA (7th ed.) Citation

Biermann, K. (1980). Alexander von Humboldt. Teubner.

Chicago Style (17th ed.) Citation

Biermann, Kurt-R. Alexander Von Humboldt. Leipzig: Teubner, 1980.

MLA (8th ed.) Citation

Biermann, Kurt-R. Alexander Von Humboldt. Teubner, 1980.

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