Oruka, H. O. (1991). The philosophy of liberty: An essay on political philosophy. Standard Textbooks Graphics and Publishing.
Citazione stile Chigago Style (17a edizione)Oruka, H. Odera. The Philosophy of Liberty: An Essay on Political Philosophy. Nairobi, Kenya: Standard Textbooks Graphics and Publishing, 1991.
Citatione MLA (9a ed.)Oruka, H. Odera. The Philosophy of Liberty: An Essay on Political Philosophy. Standard Textbooks Graphics and Publishing, 1991.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.