Dyfyniad APA

Time. (1997). Time Great Events of the 20th Century. Time Books.

Dyfyniad Arddull Chicago

Time. Time Great Events of the 20th Century. New York: Time Books, 1997.

Dyfyniad MLA

Time. Time Great Events of the 20th Century. Time Books, 1997.

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