Bellavia, Regina M., 1967-
Omaha, Neb. : National Park Service, Midwest Field Area, Great Plains Systems Support Office, Cultural Resources, 1996 [i.e. 1997]
1996
Cook, Philip S., 1960- author.
Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2013.
2013
Manni, Marc F., author.
Fort Collins, Colorado : U.S. Department of the Interior, National Park Service, Natural Resource Stewardship and Science, 2013.
2013