U.S. Dept. of the Interior, National Park Service, Alaska Region,
1999 aerial moose survey along the Yukon River corridor, Yukon-Charley Rivers National Preserve, Alaska : project report, November, 1999
Technical report NPS/AR/NRTR ;
Burch, John W.
United States. National Park Service. Alaska System Support Office.
John Burch.
1999 aerial moose survey along the Yukon River corridor, Yukon-Charley Rivers National Preserve, Alaska : project report, November, 1999