@misc{Schrader_Frank_C._(1860-1944)_Bulletin,
 author={Schrader, Frank C. (1860-1944) and Schrader, Frank Charles (1860-1944)},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={czasopismo},
 title={Bulletin 690-D. Quicksilver deposits of the Phoenix Mountains, Arizona},
 keywords={geologia, mineralogia, czasopisma, Arizona (Stany Zjednoczone ; stan)},
}