@article {25081,
	title = {Investigations of survey:  a case study on the Umpqua River},
	journal = {Surveying and Land Information Systems / American Congress on Surveying and Mapping.},
	volume = {51},
	number = {4},
	year = {1991},
	note = {Historical; surveying errors},
	month = {1991},
	pages = {244-248},
	keywords = {history, land ownership},
	isbn = {1052-2905},
	author = {Breckenridge, R.}
}
