000			00431nam a2200181Ia 4500
005			20250619144854.0
008			250619s9999||||xx |||||||||||||| ||und||
020			_c9
040			_aMAIN
041			_aEnglish
082			_a600 _bBHA
100			_aBhattacharyya, Amitabha
245		0	_aNew technology
260			_aCalcutta _b; The Institution Of Engineers _c, 1973
300			_a249p.
650			_aTechnology
942			_cBK
999			_c114745 _d114745