Sigel, A., Sigel, H., Sigel, R. K., & Sigel, R. K. O. Cadmium: From toxicity to essentiality (1st ed. 2013.). Springer Netherlands.
Style de citation Chicago (17e éd.)Sigel, Astrid, Helmut Sigel, Roland KO Sigel, et Roland K. O. Sigel. Cadmium: From Toxicity to Essentiality. 1st ed. 2013. Dordrecht: Springer Netherlands.
Style de citation MLA (8e éd.)Sigel, Astrid, et al. Cadmium: From Toxicity to Essentiality. 1st ed. 2013. Springer Netherlands.
警告：這些引文格式不一定是100％准確.