@misc{Condit_Daniel_Dale_(1886-?)_Bulletin,
 author={Condit, Daniel Dale (1886-?)},
 copyright={Gdańsk University of Technology Library},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={journal},
 title={Bulletin 621-N. Structure of the berea oil sand in the Summerfield Quadrangle, Guernsey, Noble and Monroe Counties, Ohio},
 keywords={geology, mineralogy, United States of America, journals},
}