@book{bhlitem21431, title = {Fieldiana Geology}, volume = {v.25 (1972)}, copyright = {In copyright. Digitized with the permission of the rights holder.}, url = {https://www.biodiversitylibrary.org/item/21431}, note = {https://www.biodiversitylibrary.org/bibliography/42260}, publisher = {[Chicago], Chicago Natural History Museum, 1945-}, author = {Chicago Natural History Museum. and Field Museum of Natural History.}, year = {1972}, pages = {334}, keywords = {Geology}, }