MLA

Sigel, Astrid; Sigel, Helmut; Sigel, Roland K. O, Helmut Sigel, and Roland K. O Sigel. The Alkali Metal Ions: Their Role for Life. Springer International Publishing, 2016.

APA

Sigel, R. K. O, Sigel, H.Sigel, R. K. O. (2016). The Alkali Metal Ions: Their Role for Life. Springer International Publishing.

Chicago

Sigel, Astrid; Sigel, Helmut; Sigel, Roland K. O., Helmut Sigel, and Roland K. O Sigel. The Alkali Metal Ions: Their Role for Life. : Springer International Publishing, 2016.