000 00404nam a22001457a 4500
082 _a371.42
_bCRO.I
084 _2Colon Classification
100 _aCrow, Lester D
245 _aIntroduction to guidance :
_bbasic principles and practices
_cLester D Crow and Alice Crow
250 _a2nd ed.
260 _aNew Delhi :
_bS. Chand & Co,
_c1960.
300 _a463p. :
650 _aGuidance
942 _cBK
999 _c325343
_d325343