TY - RPRT TI - Experiments upon the control of Trichodiniasis of salmonid fishes by the prolonged recirculation of formalin solutions AU - Frederic F. Fish AU - Roger E. Burrows PY - 1940 DO - 10.1577/1548-8659(1939)69[94:eutcot]2.0.co;2 UR - https://pubs.usgs.gov/publication/70160520 ID - 70160520 ER -