Olden, Anthony. Some comments on compiling the "Current Bibliography of the Savanna States of Nigeria" and on the documentation on the area. 1981.

“Olden, Anthony. Some comments on compiling the "Current Bibliography of the Savanna States of Nigeria" and on the documentation on the area. 1981.,” African Ephemera Collection, accessed May 17, 2024, https://collections.libraries.indiana.edu/africancollections/items/show/5881.