@BOOK {NG:1996d, title = {Conservation des ressources genetiques par le stockage des graines: Guide de recherche de l'Iita, No. 52}, author = {Ng, N. Q. }, series = {Guide de recherche de l'Iita, No. 52}, year = {1996}, month = {December}, publisher = {International Institute of Tropical Agriculture (IITA)}, address = {Ibadan, Nigeria}, note = {36p.}, }