000			00319nam a2200133Ia 4500
008			230917s9999||||xx |||||||||||||| ||und||
040			_e91525 _aMAIN
041			_aEnglish
082			_a519.287 G552O
100			_aGoel, Sushil
245		0	_aOn ratio and product methods of estimation
300			_a80 p.
942			_cTH
999			_c72398 _d72398