@misc{Wilmarth_Mary_Grace_(1866-1949)_Bulletin,
 author={Wilmarth, Mary Grace (1866-1949)},
 howpublished={online},
 publisher={Government Printing Office.},
 language={eng},
 type={journal},
 title={Bulletin 826. Names and definitions of the geologic units of California},
 keywords={geology, mineralogy, journals, United States of America},
}