Dyfyniad APA

Tuckman, B. W. Conducting educational research.

Dyfyniad Arddull Chicago

Tuckman, Bruce W. Conducting Educational Research.

Dyfyniad MLA

Tuckman, Bruce W. Conducting Educational Research.

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