@book{bhlitem125027, title = {The late Woodfordian Jules soil and associated Molluscan faunas }, volume = {Circular no.486}, copyright = {Public domain. Published in 1974 sans copyright statement.}, url = {https://www.biodiversitylibrary.org/item/125027}, note = {https://www.biodiversitylibrary.org/bibliography/61512}, publisher = {Urbana, 1974}, author = {Illinois State Geological Survey. and Frye, John Chapman,}, year = {1974}, pages = {16}, keywords = {Fauna|Glacial epoch|Grond|Illinois|Mollusks, Fossil|Weekdieren|}, }