Cramer, Steven P.; Ackerman, Nichlaus & Witty, Kenneth L. Spawning Success of Hatchery Spring Chinook Salmon Outplanted as Adults in the Clearwater River Basin, Idaho, 2001., report, April 16, 2002; (https://digital.library.unt.edu/ark:/67531/metadc783563/m1/1/: accessed December 14, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .