Igbo language course /
Igwe, G. E.
Green, M. M.(Margaret Mackeson)
Ibadan :         Oxford University Press,
1967-70.
"Official orthography."
"An expansion of A short Igbo grammar [by] Igwe and Green ... 1964."
book 1. Igbo language study.--book 2. Igbo dialogues and stories.--book 3. Dialogue, sayings, translation.
Igbo language