Bobie, E. O. (2012). Physical geography: For senior high schools. AKI-OLA Publications.
Citazione stile Chigago Style (17a edizione)Bobie, Eric Osei. Physical Geography: For Senior High Schools. Accra, Ghana: AKI-OLA Publications, 2012.
Citatione MLA (9a ed.)Bobie, Eric Osei. Physical Geography: For Senior High Schools. AKI-OLA Publications, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.