Dawodu, O. F., & Oshinowo. (2014). Recovery of Heavy Oil from Nigerian Tar Sands. Obafemi Awolowo University.
Čikaški stil citiranja (17. izdanje)Dawodu, Olukayode Fatai, i Oshinowo. Recovery of Heavy Oil from Nigerian Tar Sands. Obafemi Awolowo University, 2014.
MLA način citiranja (9. izdanje)Dawodu, Olukayode Fatai, i Oshinowo. Recovery of Heavy Oil from Nigerian Tar Sands. Obafemi Awolowo University, 2014.
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