Dyfyniad APA

(1958). Markets of the sixties. Harper and brothers.

Dyfyniad Arddull Chicago

Markets of the Sixties. Newyork: Harper and brothers, 1958.

Dyfyniad MLA

Markets of the Sixties. Harper and brothers, 1958.

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