@INBOOK {ROSSEL:1988a, title = {Complex virus diseases of sweet potato}, author = {Rossel, H. W. and Thottappilly, G. }, year = {1988}, type = {Exploration, maintenance and utilization of sweet potato genetic resources}, pages = {291--302}, publisher = {International Potato Center (CIP)}, address = {Lima}, note = {RTB; Root and Tuber; Sweetpotato}, }