Native parasitoids attacking Urophora affinis Frauenfeld (Diptera; Tephritidae), an introduced biological control agent of spotted and diffuse knapweeds (Centaurea spp.) in the United States
Rf. Lang et Rd. Richard, Native parasitoids attacking Urophora affinis Frauenfeld (Diptera; Tephritidae), an introduced biological control agent of spotted and diffuse knapweeds (Centaurea spp.) in the United States, PAN PAC ENT, 74(4), 1998, pp. 223-227