@misc{Overbeck_R._M._Bulletin,
 author={Overbeck, R. M. and Maddren, Alfred Geddes (1875-?)},
 copyright={Gdańsk University of Technology Library},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={journal},
 title={Bulletin 662-G. Lode Deposits and Gold Placers near the Nenana Coal Field, Alaska},
 keywords={geology, mineralogy, journals, United States of America},
}