Dyfyniad APA

Geography, D. o. (2019). Soil Geogrphy. Obafemi Awolowo University.

Dyfyniad Arddull Chicago

Geography, Department of. Soil Geogrphy. Obafemi Awolowo University, 2019.

Dyfyniad MLA

Geography, Department of. Soil Geogrphy. Obafemi Awolowo University, 2019.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.