Geography, D. o. (2019). Elementary Cartography and Statistical Representation. Obafemi Awolowo University.
芝加哥风格引文Geography, Department of. Elementary Cartography and Statistical Representation. Obafemi Awolowo University, 2019.
MLA引文Geography, Department of. Elementary Cartography and Statistical Representation. Obafemi Awolowo University, 2019.
警告：这些引文格式不一定是100％准确.