Dyfyniad APA

Hyman, S. (1975). The Aspen idea. University of Oklahoma Press.

Dyfyniad Arddull Chicago

Hyman, Sidney. The Aspen Idea. Norman, Oklahoma: University of Oklahoma Press, 1975.

Dyfyniad MLA

Hyman, Sidney. The Aspen Idea. University of Oklahoma Press, 1975.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.