Derrick, William R.
Elementary differential equations with applications : - 2nd ed. - Reading, Massachusetts, US : Addison Wesley Publishing Co, 1981. - 284 p.
0-201-03164-7
Differential equations.
515 DER.
Elementary differential equations with applications : - 2nd ed. - Reading, Massachusetts, US : Addison Wesley Publishing Co, 1981. - 284 p.
0-201-03164-7
Differential equations.
515 DER.