Geography, D. o. (2019). Soil Geogrphy. Obafemi Awolowo University.
Chicagoスタイル(17版)引用形式Geography, Department of. Soil Geogrphy. Obafemi Awolowo University, 2019.
MLA(9版)引用形式Geography, Department of. Soil Geogrphy. Obafemi Awolowo University, 2019.
警告: この引用は必ずしも正確ではありません.