Dyfyniad APA

(1951). Growing wool. Department of Education of the International Wool Secretariat.

Dyfyniad Arddull Chicago

Growing Wool. London: Department of Education of the International Wool Secretariat, 1951.

Dyfyniad MLA

Growing Wool. Department of Education of the International Wool Secretariat, 1951.

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