iii. Bibliography
- North West water authority, Water Standards Tables, 1994
- Wood & Holliday, Inorganic Chemistry - 3rd Ed., pp. 328
- Belcher & Nutten, Qualitative Inorganic Chemistry - 2nd Ed.
- Vogel, A. Qualitative Inorganic Chemistry - 3rd Ed.
- Literature cited value (see original methodology)
- H.S.E. Chromium, 1983
- Russian Medical Journal, Russian Health, 1991, pp.32, 61
- . B.M.A. Toxic effects of transition elements on the internal organs. 1961
- Adapted from Hermann, M.S. J. Chem Ed. 71, 1994, pp. 323-324
- Lunn G, Samsone, E.B., J. Chem. Ed. 66, 1989, pp. 443