TY - RPRT TI - Canada thistle biological control agents on two South Dakota wildlife refuges AU - C.C. Reed AU - D.L. Larson AU - J.L. Larson PY - 2006 DO - 10.3375/0885-8608(2006)26[47:ctbcao]2.0.co;2 UR - https://pubs.usgs.gov/publication/70031152 ID - 70031152 ER -