Isuman, J. U. (1957). Need for more states in Nigeria: With some submissions for a mid-west state. Printed by Hamzat Printing Works.
Chicago-viite (17. p.)Isuman, Jaafaru Ushomo. Need for More States in Nigeria: With Some Submissions for a Mid-west State. Benin Cty, Nigeria: Printed by Hamzat Printing Works, 1957.
MLA-viite (8. p.)Isuman, Jaafaru Ushomo. Need for More States in Nigeria: With Some Submissions for a Mid-west State. Printed by Hamzat Printing Works, 1957.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.