000 01640nam a2200241Ia 45e0
008 140118n1987 ii |||gr||||Z||||||guj
082 _a631
100 _aPatel, P. M.,
_eAuthor.
245 0 _aBij Vigyan
_cP. M. Patel
_hTextual Documents
260 _aAhmedabad
_bKrishna Publishing House
_c1987
300 _a288.
653 _aTechniques, equipment & materials
942 _2ddc
_cTXT
999 _c23470
_d23470