@misc{Nickles_John_Milton_(1859-1945)_Bulletin,
 author={Nickles, John Milton (1859-1945)},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={journal},
 title={Bulletin 617. Bibliography of north american geology form 1914 with subject index},
 keywords={United States of America, geology, mineralogy, journals},
}