Kells, Lyman M. 1888-
Elementary differential equations. - 6th ed. - New York, McGraw-Hill, 1965. - 430 p. illus. 24 cm.
60008029
Differential equations.
QA371 / .K4 1960
517.38
Elementary differential equations. - 6th ed. - New York, McGraw-Hill, 1965. - 430 p. illus. 24 cm.
60008029
Differential equations.
QA371 / .K4 1960
517.38