Dyfyniad APA

(1971). The Statesman's yearbook: 1971-72. St. Martin's Press.

Dyfyniad Arddull Chicago

The Statesman's Yearbook: 1971-72. Macmillan: St. Martin's Press, 1971.

Dyfyniad MLA

The Statesman's Yearbook: 1971-72. St. Martin's Press, 1971.

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