@BOOK {THOTTAPPILLY:1998b, title = {Les maladies virales du niebe en Afrique: Guide de recherche de l'Iita, No. 53}, author = {Thottappilly, G. and Rossel, H. W. }, series = {Guide de recherche de l'Iita, No. 53}, year = {1998}, month = {January}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, isbn = {978-131-136-3}, note = {29p.}, }