000 00301nam a2200121Ia 4500
082 _a515.358
_bLEW
100 _aLewis, Robet C.
245 _aGrowth and decay models.
260 _aNew York,London etc
_bPenguin Books Ltd.
_c1972
300 _a64p.
890 _aUnited Kingdom
999 _c13365
_d13365
650 _aMathematical models
_aDifferential equations
_aExponential functions