Dyfyniad APA

Bliven, B. (1950). Twentieth century unlimited: From the vantage point of the first fifty years.

Dyfyniad Arddull Chicago

Bliven, Bruce. Twentieth Century Unlimited: From the Vantage Point of the First Fifty Years. 1950.

Dyfyniad MLA

Bliven, Bruce. Twentieth Century Unlimited: From the Vantage Point of the First Fifty Years. 1950.

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