Ola, R. F. (1984). Local administration in Nigeria. Kegan Paul International.
芝加哥风格引文Ola, Robert F. Local Administration in Nigeria. London: Kegan Paul International, 1984.
MLA引文Ola, Robert F. Local Administration in Nigeria. Kegan Paul International, 1984.
警告：这些引文格式不一定是100％准确.