@article {28403,
	title = {An empirical reconstruction of water levels for Lake Athabasca (1810-1967) by analysis of tree rings : a preliminary report. In ; The Peace-Athabasca Delta Project. Technical Appendices, Volume 1, 1973 Hydrologic Investigations. Section P. Appendix II. Re},
	year = {1971},
	institution = {University of Arizona for The Peace-Athabasca Delta Project Group},
	address = {Tucson},
	author = {Stockton, Charles W. and Fritts, Harold C.}
}
