000 00400cam a2200169ua 4500
020 _cRS.9/-
041 _aeng
_h
082 _a370.78
_bBES/RE
100 _aBest, John .
245 _aResearch education /
_cJohn.W.Best.
_hTextual Documents
260 _a :
_bPrentice Hall Inc ,
_c1963.
300 _a320 ; .
365 _aRS.9/-
504 _a
942 _cBK
999 _c266231
_d266231