Packer, M. J. (2012). A Concrete Psychological Investigation of Ifá Divination. Universidad Nacional de Colombia.
Citazione stile Chigago Style (17a edizione)Packer, Martin J. A Concrete Psychological Investigation of Ifá Divination. Universidad Nacional de Colombia, 2012.
Citatione MLA (9a ed.)Packer, Martin J. A Concrete Psychological Investigation of Ifá Divination. Universidad Nacional de Colombia, 2012.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.