01357cam a22002891  4500001001300000003000400013005001700017008004100034010001700075035002000092040005300112042001200165050002100177051001700198100003800215245019500253260004900448300004000497490006800537500001900605500017000624501015200794650003600946650002700982700004101009999001701050e  30000229 DLC20260227111220.0860409s1930    dcua         f000 0 eng c  ae  30000229   a(OCoLC)13409228  aLibrary, U.S. Office of EducationcNhDdNhDdDLC  apremarc10aL111b.A75 no. 8  aLB1133b.B551 aBlose, David T.q(David Thompson)13aAn age-grade study of 7,632 elementary pupils in 45 consolidated schools,cby D.T. Blose, Principal Statistical Assistant and Timon Covert, Specialist in School Finance, Office of Education.  a[Washington,bU.S. Govt. Print. Off.,c1930]  a20 p. incl. tables, diagrs.c23 cm.0 aUnited States. Office of Education. Pamphletvno. 8. June, 1930  aCaption title.  aAt head of title: ... United States Department of the Interior. Ray Lyman Wilbur, Secretary. Office of Education. William John Cooper, Commissioner. Washington, D.C.  aL111.A75 with: Camp in higher education / Marie M. Ready. Washington : U.S. Govt. Print. Off., 1930. Bound together subsequent to publication.5DLC 0aSchool childrenzUnited States. 0aEducation, Elementary.1 aCovert, Timon,d1883-ejoint author.  c21037d21037