Gaya APA

Obuna, E. (1986). The people of God as educators to peace and nonviolence among the Igbos of Nigeria. Bagian disertasi . Romae: PUL.

Gaya MLA

Obuna, Emmanuel.. "The people of God as educators to peace and nonviolence among the Igbos of Nigeria. Bagian disertasi ". Romae: PUL, 1986. Buku.