000 00317nam a2200133Ia 4500
008 190710s9999 xx 000 0 und d
020 _a81-87317-55-8
082 _a371.42 R18
100 _aRao, V K
245 0 _aVocational education
260 _aDelhi
_bRajat Publications
_c1999
300 _av, 302
942 _cBK
999 _c22639
_d22639