@misc{Larsen_Esper_Signius_(1879-1961)_Bulletin,
 author={Larsen, Esper Signius (1879-1961)},
 copyright={Gdańsk University of Technology Library},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={journal},
 title={Bulletin 679. The microscopic determination of the nonopaque minerals},
 keywords={geology, mineralogy, journals},
}