00668nam 2200169z- 450 9910712762603321(CKB)5470000002496546(EXLCZ)99547000000249654620230509c2017uuuu -u- -engHerbert Hoover National Historic Site : geologic resources inventory reportU.S. Department of the Interior, National Park Service, Natural Resource Stewardship and ScienceFort Collins, ColoradoHerbert Hoover National Historic Site BOOK9910712762603321Herbert Hoover National Historic Site : geologic resources inventory report3333332UNINA