John L. Retzer, Harold M. Swope, Jack D. Remington, and William H. Rutherford. State of Colorado Department of Game and Fish. March 1956.

Idaho Fish and Game Commission. 1965.

Quentin D. Skinner, Michael A. Smith, Jerrold L. Dodd, and J. Daniel Rodgers

Jay D. Hair, Gary T. Hepp, Lawrence M. Luckett, Kerry P. Reese, and David K. Woodward

1998

North American Lake Management Society

Ralph E. Clark III. September 29, 2003.

Ken Baker