"6 questions everybody asks at national fish hatcheries."; "United States. Bureau of Fisheries and Wildlife."; "Fish hatcheries--United States.", "Fish-culture--United States.", "Fishery management--United States.", "Fish ponds--United States."; "United States. Bureau of Fisheries and Wildlife."; "undated"; "

Brochure. Issued as: United States. Bureau of Sport Fisheries and Wildlife. Circular, 157.

"; ""; "P12609"; "pec"; "Fish-culture--United States.", "Fish hatcheries--United States.", "Fishery management--United States.", "Fish ponds--United States."; "14256"; .