Department, G. (2019). Principles of Surveying. Obafemi Awolowo University.
Čikaški stil citiranja (17. izdanje)Department, Geography. Principles of Surveying. Obafemi Awolowo University, 2019.
MLA način citiranja (9. izdanje)Department, Geography. Principles of Surveying. Obafemi Awolowo University, 2019.
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