http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Practical guide for prospectors and small-mine operators in Montana
ix, 105 pages, 19 unnumbered pages of plates : illustrations ; 19 cm.
"Partial list of reference books for further study": pages 102-103. Bibliography: page 105.
Miscellaneous contributions (Montana Bureau of Mines and Geology) ; no. 13