TY - RPRT TI - Immunization of salmonids against Yersinia ruckeri: Significance of humoral immunity and cross protection between serotypes AU - R. C. Cipriano AU - T. Ruppenthal PY - 1987 DO - 10.7589/0090-3558-23.4.545 UR - https://pubs.usgs.gov/publication/1013706 ID - 1013706 ER -