Clark, K. (1975). The concept of universal man. Ditchley Foundation.
Dyfyniad Arddull ChicagoClark, Kenneth. The Concept of Universal Man. Enstone: Ditchley Foundation, 1975.
Dyfyniad MLAClark, Kenneth. The Concept of Universal Man. Ditchley Foundation, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.