00880nam a2200229Ia 450000100060000000300050000600500170001100800410002801000150006903500200008404000240010405000170012811000470014524501580019226000190035030000350036949000500040450000860045465000340054065000290057470000470060384030BIBL20160527203449.0720308s1962    gw a          000 0 eng    a 65039960   a(OCoLC)00258760  aDLCcCINdm.c.dXBM0 aLB1135b.H2520aUnesco Institute for Education.wcn2Local10aEducational achievements of thirteen-year olds in twelve countriesbresults of an international research project, 1959-61,cArthur W. Foshay [and others]0 aHamburgc1962.  a68 p.bdiagrs., tables.c24cm. 0aInternational studies in education, 282Local  aLabel mounted on title page: Distributed by Unesco Publications Center, New York. 0aEducation , Elementary2Local 0aChild development2Local10aFoshay, Arthur Wellesleyd1912-wdn2Local