000			00419nam a2200145Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a510 _bBEL-P
100			_aBellman, Richard
245		0	_aPesturbation Techniques In Maths, Phys, & Engineering
260			_bThacker _aTrissur _c1972
300			_a118p.
630			_xGeneral Stack
650			_aNATURAL SCIENCES _vMATHEMATICSPESTURBATION _xGeneralia
942			_cBOOK
999			_c36724 _d36724