Zill, Dennis G.
A First course in differential equations with modeling applications. - Pacific Grove : Brooks/ Cole, 1997. - 6th ed. 387p., indexreferences. ; cm.
0534955746
Differential Equations.
QA372.Z69
A First course in differential equations with modeling applications. - Pacific Grove : Brooks/ Cole, 1997. - 6th ed. 387p., indexreferences. ; cm.
0534955746
Differential Equations.
QA372.Z69