Trace metals in water supplies : occurrence, significance, and control : proceedings /

Mode of access: Internet.

Abundance of trace and minor elements in organic and mineral fractions of coal /

"August 1980."

Toxic trace metals in mammalian hair and nails /

"August 1979."

Bibliography of U.S. Geological Survey trace elements and related reports to June 1, 1954,

Reprinted from U.S. Geological Survey, Contributions to bibliography of mineral resources,

Analysis of petroleum for trace elements.

"A Pergamon Press book."