Dyfyniad APA

(1951). Graduate study in education / prepared by the Society's Board of Directors ; edited by Nelson B. Henry.

Dyfyniad Arddull Chicago

Graduate Study in Education / Prepared by the Society's Board of Directors ; Edited by Nelson B. Henry. 1951.

Dyfyniad MLA

Graduate Study in Education / Prepared by the Society's Board of Directors ; Edited by Nelson B. Henry. 1951.

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