Title: Biblio RTF Export
Author: Biblio 7.x

P.  Service, ?Genotypic Interactions in an aphid-host plant relationship: Uroleucon rudbeckiae and Rudbeckia laciniata?, Oecologia, vol. 61, pp. 271-276, 1984.

L.  Boulos and M. el-Hadidi, N., The Weed Flora of Egypt. Cairo: American University Press, 1984.