Oruka, H. O. (1994). Philosophy, humanity and ecology: Philosophy of nature and enviromental ethics. Acts.
Chicagoスタイル(17版)引用形式Oruka, H. Odera. Philosophy, Humanity and Ecology: Philosophy of Nature and Enviromental Ethics. Nairobi: Acts, 1994.
MLA(9版)引用形式Oruka, H. Odera. Philosophy, Humanity and Ecology: Philosophy of Nature and Enviromental Ethics. Acts, 1994.
警告: この引用は必ずしも正確ではありません.