APA (7th ed.) Citation

Church Missionary Society. (1918). Nigeria the unknown: A missionary study text-book on Nigeria. The Society.

Chicago Style (17th ed.) Citation

Church Missionary Society. Nigeria the Unknown: A Missionary Study Text-book on Nigeria. London: The Society, 1918.

MLA (8th ed.) Citation

Church Missionary Society. Nigeria the Unknown: A Missionary Study Text-book on Nigeria. The Society, 1918.

Warning: These citations may not always be 100% accurate.