Analytical methods used in geochemical exploration, 1984, by R.M. O'Leary and A.L. Meier
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Peter M. D. Bradshaw
![Exploration geochemistry: design and interpretation of soil surveys, by W.K. Fletcher [and others]](/assets/img/no-cover.svg)
William K. Fletcher
The Institution of Mining and Metallurgy
Exploration '87 (1987 Toronto, Ont.)
I. L Elliott
G. R. Parslow