Dyfyniad APA

Pressley Ridge School, West Virginia University, & California State College (Pa.). Education & treatment of children. Pressley Ridge School.

Dyfyniad Arddull Chicago

Pressley Ridge School, West Virginia University, and California State College (Pa.). Education & Treatment of Children. Pittsburgh, Pa.: Pressley Ridge School.

Dyfyniad MLA

Pressley Ridge School, et al. Education & Treatment of Children. Pressley Ridge School.

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