Pressley Ridge School, West Virginia University, & California State College (Pa.). Education & treatment of children. Pressley Ridge School.
Chicago-viite (17. p.)Pressley Ridge School, West Virginia University, ja California State College (Pa.). Education & Treatment of Children. Pittsburgh, Pa.: Pressley Ridge School.
MLA-viite (9. p.)Pressley Ridge School, et al. Education & Treatment of Children. Pressley Ridge School.
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