@misc{Darton_N._H._(1865-1948)_Bulletin, author={Darton, N. H. (1865-1948) and Darton, Nelson Horatio (1865-1948)}, howpublished={online}, publisher={Government Printing Office.}, language={eng}, title={Bulletin 691-A. The structure of parts of the Central Great Plains}, type={czasopismo}, keywords={geologia, mineralogia, czasopisma}, }