Geography, D. O. (2019). Soil Geography. Obafemi Awolowo University.
Citazione stile Chigago Style (17a edizione)Geography, Department Of. Soil Geography. Obafemi Awolowo University, 2019.
Citatione MLA (9a ed.)Geography, Department Of. Soil Geography. Obafemi Awolowo University, 2019.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.