Wheeler, A. G., & Stoops, C. A. (1996). Establishment of urophora affinis on spotted knapweed in pennsylvania, with new eastern U.S. records of U. quadrifasciata (Diptera: Tephritidae). Zenodo.
Chicago-Zitierstil (17. Ausg.)Wheeler, Alfred George, und C A. Stoops. Establishment of Urophora Affinis on Spotted Knapweed in Pennsylvania, with New Eastern U.S. Records of U. Quadrifasciata (Diptera: Tephritidae). Zenodo, 1996.
MLA-Zitierstil (9. Ausg.)Wheeler, Alfred George, und C A. Stoops. Establishment of Urophora Affinis on Spotted Knapweed in Pennsylvania, with New Eastern U.S. Records of U. Quadrifasciata (Diptera: Tephritidae). Zenodo, 1996.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.