000 00330cam a22001217a 4500
008 180718b1978 xxu||||| |||| 00| 0 eng d
082 _aP In8
100 _aHaddad, Wadi D.
245 _aEducational effects of class size
_cby Wadi D. Haddad
260 _aWashington, D.C.
_bIBRD
_c1978
300 _a17p. Paper
650 _aEducation
999 _c223980
_d223980