TY - BOOK ID - 134918878 TI - Herbert Hoover National Historic Site : geologic resources inventory report AU - Graham, John P. AU - United States. PY - 2017 PB - Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, DB - UniCat KW - Geology KW - Historic sites KW - Herbert Hoover National Historic Site (West Branch, Iowa) KW - Management. UR - https://www.unicat.be/uniCat?func=search&query=sysid:134918878 AB - ER -