TY - RPRT TI - Formalin treatments pass new tests. Additional notes on the control of ecto-parasitic protozoa PY - 1940 DO - 10.1577/1548-8640(1940)7[31:ftpnt]2.0.co;2 UR - https://pubs.usgs.gov/publication/70160514 ID - 70160514 ER -