@misc{Callaghan_Eugene_(1904-1990)_Bulletin,
 author={Callaghan, Eugene (1904-1990) and Buddington, Arthur Francis (1890-1980)},
 copyright={Gdańsk University of Technology Library},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={journal},
 title={Bulletin 893. Metalliferous mineral deposits of the Cascade Range in Oregon},
 keywords={geology, mineralogy, journals, United States of America},
}