@misc{Bowen_Charles_F._(1871-1953)_Bulletin, author={Bowen, Charles F. (1871-1953)}, howpublished={online}, publisher={Government Printing Office.}, language={eng}, type={czasopismo}, title={Bulletin 661-I. Phosphatic oil shales near Dell and Dillon, Beaverhead County, Montana}, keywords={geologia, mineralogia, czasopisma, Montana (Stany Zjednoczone ; stan)}, }