Plessner. Levels of Organic Life and the Human. Fordham University Press.
Cita Chicago (17th ed.)Plessner. Levels of Organic Life and the Human. Fordham University Press.
Cita MLA (8th ed.)Plessner. Levels of Organic Life and the Human. Fordham University Press.
Atenció: Aquestes cites poden no estar 100% correctes.