@book {22552,
	title = {Common and contested ground : A human and environmental history of the northwestern plains},
	year = {2001},
	pages = {1-263},
	address = {Norman: University of Oklahoma Press},
	keywords = {common ground, contested ground, environmental history, north-western plains},
	isbn = {0806180854 9780806180854},
	author = {Binnema, Theodore}
}
