000 00441 a2200145 4500
080 _a371.426
_bW 226 V
245 1 _aVocational & technical educational
_cby H. Waren; translated by Krishan Kant
260 _aDelhi
_bThomson Press India Limited, Publication Division
_c1971
650 _aVocational Education
650 _aTechnical Educational
700 _aKant, Krishan, tr.
100 1 _aWaren, H.
300 _a255 p.
901 _a118271
999 _c23464
_d23464