Dyfyniad APA

Cohen, M. R. (1961). The meaning of human history (2nd.ed.). Open Court.

Dyfyniad Arddull Chicago

Cohen, Morris R. The Meaning of Human History. 2nd.ed. Illinois: Open Court, 1961.

Dyfyniad MLA

Cohen, Morris R. The Meaning of Human History. 2nd.ed. Open Court, 1961.

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