1. Amarowicz, R., Sulik, M., Markiewicz, K., Korczakowska, B., & Brykalska, A. (1991). Lead contents in the liver and kidney of the inhabitants of the city of Białystok and of its vicinity. Rocznik PZH, XLII, 277–281.
2. Andrews, J. E., Brimblecombe, P., Jickells, T. D., Liss, P. S., & Reid, B. J. (2004). An introduction to environmental chemistry (2nd ed.). Oxford: Blackwell Science.
3. Anke, M., Henning, A., Grun, M., Groppel, B., & Ludke, H. (1976). Cadmium and its influence on plants, animals and man with regard to geological and industrial conditions. Trace Substances in Environmental Health, 10, 403–409.
4. Barile, F. A. (2003). Clinical toxicology: Principles and mechanisms. Boca Raton: Informa HealthCare, CRC Press.
5. Bem, E. M., Kaszper, B. W., Orłowski, Cz., Piotrowski, J. K., Wójcik, G., & Żołnowska, E. (1993a). Cadmium, zinc and metallothionein levels in the kidney and liver of humans from Central Poland. Environmental monitoring and assessment (Vol. 25, pp. 1–13). Dordrecht: Kluwer Academic Publishers.