@book{bhlpg7564506, title = {Bulletin of the United States National Museum }, volume = {no.30 (1885)}, url = {https://www.biodiversitylibrary.org/page/7564506}, publisher = {G.P.O}, author = {United States National Museum }, year = {1885}, pages = {Page 260}, } @book{bhlpg40135382, title = {Report on the geology and resources of the Black hills of Dakota, with atlas }, url = {https://www.biodiversitylibrary.org/page/40135382}, publisher = {Govt. Print. Off}, author = {Geographical and Geological Survey of the Rocky Mountain Region (U.S.) }, year = {1880}, pages = {Page 407}, } @book{bhlpg40831823, title = {Report on the geology and resources of the Black Hills of Dakota : with atlas }, url = {https://www.biodiversitylibrary.org/page/40831823}, publisher = {Govt. Print. Off}, author = {Gray, Asa, 1810 -1888}, year = {1880}, pages = {Page 408}, } @book{bhlpg40831596, title = {Report on the geology and resources of the Black Hills of Dakota : with atlas }, url = {https://www.biodiversitylibrary.org/page/40831596}, publisher = {Govt. Print. Off}, author = {Gray, Asa, 1810 -1888}, year = {1880}, } @book{bhlpg40135485, title = {Report on the geology and resources of the Black hills of Dakota, with atlas }, url = {https://www.biodiversitylibrary.org/page/40135485}, publisher = {Govt. Print. Off}, author = {Geographical and Geological Survey of the Rocky Mountain Region (U.S.) }, year = {1880}, } @book{bhlpg40135383, title = {Report on the geology and resources of the Black hills of Dakota, with atlas }, url = {https://www.biodiversitylibrary.org/page/40135383}, publisher = {Govt. Print. Off}, author = {Geographical and Geological Survey of the Rocky Mountain Region (U.S.) }, year = {1880}, pages = {Page 408}, } @book{bhlpg40831821, title = {Report on the geology and resources of the Black Hills of Dakota : with atlas }, url = {https://www.biodiversitylibrary.org/page/40831821}, publisher = {Govt. Print. Off}, author = {Gray, Asa, 1810 -1888}, year = {1880}, pages = {Page 406}, } @book{bhlpg42640808, title = {Shells and sea life }, volume = {v.17:no.2 (1985)}, url = {https://www.biodiversitylibrary.org/page/42640808}, publisher = {Miranda Enterprises}, author = {Long, Steven J. }, year = {1985}, pages = {Page 66}, } @book{bhlpg5934654, title = {An up-to-date systematic list of 3200 seashells from Greenland to Texas: translation, explanation, and gender of their names }, url = {https://www.biodiversitylibrary.org/page/5934654}, publisher = {}, author = {Poirier, Henry Pierre, 1886 -}, year = {1954}, }