Humboldt, A. v., & Beck, H. (1989). Schriften zur physikalischen Geographie. Wiss. Buchges..
Chicago Style (17th ed.) CitationHumboldt, Alexander von, and Hanno Beck. Schriften Zur Physikalischen Geographie. Darmstadt: Wiss. Buchges., 1989.
MLA (8th ed.) CitationHumboldt, Alexander von, and Hanno Beck. Schriften Zur Physikalischen Geographie. Wiss. Buchges., 1989.
Warning: These citations may not always be 100% accurate.