APA (7th ed.) Citation

Knölker, H. (2011). The alkaloids: Chemistry and biology. Elsevier.

Chicago Style (17th ed.) Citation

Knölker, Hans-Joachim. The Alkaloids: Chemistry and Biology. San Diego, Calif.: Elsevier, 2011.

MLA (8th ed.) Citation

Knölker, Hans-Joachim. The Alkaloids: Chemistry and Biology. Elsevier, 2011.