00477nam a2200169Ia 450000500170000000800460001703700120006304000200007504100130009508400260010824500320013424500470016626000540021330000120026736500110027965000170029020250508151447.0008  250505s9999    xx            000 0 eng d  aTextual  aFEDLbengcFEDL  aeng2eng  a016.370 78, SCOqFEDL 0aAids to educational reseach 0cScottish Council for Research in Education  aWarwick Square bUniversity of London Pressc1954  avii,39p  aINRb2  aBibliography