edited by E. 'Nolue Emenanjo, I.A.O. Umeh, J.U. Ugoji ; sponsored by the Nigerian Educational Research and Development Council ; and compiled by the Otu Iwelite Asụsụ na Omenaala Igbo (the Society for Promoting Igbo Language and Culture)

University Press Limited 1990-

v. 1 , v. 1 : NERDC

Available at 2 libraries