00707cam a22002291  4500001001300000003000400013005001700017008004100034010001700075035001900092040002000111042001200131050002300143051001600166082001100182100002500193245009200218260007100310300002200381410005900403650001500462e  49000014 DLC20260227111233.0761028s1949    dcu          f000 0 eng    ae  49000014   a(OCoLC)2537097  aDLCcNhPlSdDLC  apremarc00aL111b.A72 no. 305  aLB3013b.T6  a371.251 aTompkins, Ellsworth.10aClass size:bthe larger high school.cIndividual class size in 1,260 secondary schools.  a[Washington]bFederal Security Agency, Office of Educationc[1949]  avi, 29 p.c26 cm.10aUnited States.bOffice of Education.vCircular no. 305 0aClass size