Cofnodi Dyfyniadau

Dyfyniad APA

Gustavson, C. G. (1955). A preface to history. McGraw-Hill.

Dyfyniad Arddull Chicago

Gustavson, Carl Gustav. A Preface to History. New York: McGraw-Hill, 1955.

Dyfyniad MLA

Gustavson, Carl Gustav. A Preface to History. McGraw-Hill, 1955.

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