Publisher
Alaska Power Authority,
7
BioSonics,
1
BioSonics, Inc.,
1
Northern Technical Services,
1
Susitna-Watana Hydroelectric Project,
1
U.S. Dept. of the Interior, Geological Survey,
1
United States Department of Agriculture, Forest Service, Pacific Northwest Research Station,
1
United States Department of the Interior, Geological Survey,
1
publisher not identified,
1