@misc{Pardee_Joseph_Thomas_(1871-1960)_Bulletin,
 author={Pardee, Joseph Thomas (1871-1960) and Schrader, Frank Charles (1860-1944)},
 copyright={Gdańsk University of Technology Library},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={journal},
 title={Bulletin 842. Metalliferous deposits of the Greater Helena Mining Region, Montana},
 keywords={geology, mineralogy, metals, journals, United States of America},
}