APA (7th ed.) Citation

Sigel, H., & Sigel, A. (1984). Calcium and its role in biology. Marcel Dekker.

Chicago Style (17th ed.) Citation

Sigel, Helmut, and Astrid Sigel. Calcium and Its Role in Biology. New York: Marcel Dekker, 1984.

MLA (8th ed.) Citation

Sigel, Helmut, and Astrid Sigel. Calcium and Its Role in Biology. Marcel Dekker, 1984.

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