APA (7th ed.) Citation

Sigel, H., & Sigel, A. (1986). Concepts on metal ion toxicity. Dekker.

Chicago Style (17th ed.) Citation

Sigel, Helmut, and Astrid Sigel. Concepts on Metal Ion Toxicity. New York: Dekker, 1986.

MLA (9th ed.) Citation

Sigel, Helmut, and Astrid Sigel. Concepts on Metal Ion Toxicity. Dekker, 1986.