Geography, D. o. (2019). Elementary Cartography and Statistical Representation. Obafemi Awolowo University.
Čikaški stil citiranja (17. izdanje)Geography, Department of. Elementary Cartography and Statistical Representation. Obafemi Awolowo University, 2019.
MLA način citiranja (9. izdanje)Geography, Department of. Elementary Cartography and Statistical Representation. Obafemi Awolowo University, 2019.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.