APA (7th ed.) Citation

Sigel, A., Sigel, H., & Sigel, R. K. O. (2009). Metallothioneins and related chelators. De Gruyter.

Chicago Style (17th ed.) Citation

Sigel, Astrid, Helmut Sigel, and Roland K. O. Sigel. Metallothioneins and Related Chelators. Berlin ; Munich ; Boston: De Gruyter, 2009.

MLA (9th ed.) Citation

Sigel, Astrid, et al. Metallothioneins and Related Chelators. De Gruyter, 2009.