@book{28900,
	author = {Frye, John Chapman,},
	title = {Graded slopes in western Kansas.},
	publisher = {s.n.],},
	year = {1954.},
	series = {Kansas. State Geological Survey. Bulletin 109, pt. 6. 1954 Reports of studies, pt. 6},
	address = {[Lawrence :}
}