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Aluminium / first draft prepared by H. Habs, B. Simon, P. Howe.
- 615.9 A471
- World Health Organization,
- c1997.
- Geneva :
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Zinc / first draft prepared by B. Simon-Hettich ... [et al.].
- 615.9 Z77
- World Health Organization,
- c 2001.
- Geneva :