Langer, Rudolph Ernest, 1894-1968.
A first course in ordinary differential equations. - New York, : Wiley, 1954. - 249 p. : ill. ; 24 cm.
54005326
GB54-5087
Differential equations.
QA371 / .L26
517.38 / LAO
A first course in ordinary differential equations. - New York, : Wiley, 1954. - 249 p. : ill. ; 24 cm.
54005326
GB54-5087
Differential equations.
QA371 / .L26
517.38 / LAO