Gradmann, C. (2001). Koch, Heinrich Hermann Robert. Encyclopedia of life sciences.
Chicago Style (17th ed.) CitationGradmann, Christoph. "Koch, Heinrich Hermann Robert." Encyclopedia of Life Sciences 2001.
MLA (9th ed.) CitationGradmann, Christoph. "Koch, Heinrich Hermann Robert." Encyclopedia of Life Sciences, 2001.
Warning: These citations may not always be 100% accurate.