@BOOK {NG:2002b, title = {Postflask management of cassava and yams: IITA research guide, No. 69}, author = {Ng, S. Y. C. }, series = {IITA research guide, No. 69}, year = {2002}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, isbn = {978-131-209-2}, note = {RTB; Root and Tuber.; 29p.}, }