http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Introduction to geology and resources of gold, and geochemistry of gold
The case for gold, an introduction to geology and resources of gold in the United States / by Daniel R. Shawe -- Geochemistry of gold in hydrothermal deposits / by Samuel B. Romberger.
Case for gold, an introduction to geology and resources of gold in the United States
Geochemistry of gold in hydrothermal deposits
Geology and resources of gold in the United States ; ch. A