Malumphy, C.P. 1991 . A morphological and experimental investigation of the Pulvinaria vitis Complex in Europe. University of London, Ph.D.Thesis. London 270 pp.
Malumphy, C.P. 1991 . A morphological and experimental investigation of the Pulvinaria vitis Complex in Europe. University of London, Ph.D.Thesis. London 270 pp.