Dyfyniad APA

(1923). Special libraries Vol. 14 1923. Special libraries association.

Dyfyniad Arddull Chicago

Special Libraries Vol. 14 1923. New York: Special libraries association, 1923.

Dyfyniad MLA

Special Libraries Vol. 14 1923. Special libraries association, 1923.

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