MLA

Sigel, Astrid, Helmut Sigel, and Roland K. O Sigel. Interrelations Between Essential Metal Ions and Human Diseases. Springer Netherlands, 2013.

APA

Sigel, A., Sigel, H., & Sigel, R. K. O. (2013). Interrelations between Essential Metal Ions and Human Diseases. Springer Netherlands.

Chicago

Sigel, Astrid, Helmut Sigel, and Roland K. O Sigel. Interrelations Between Essential Metal Ions and Human Diseases. : Springer Netherlands, 2013.