Elementary differential equations
Boyce, William E.
Elementary differential equations L-1,P50 Kell, Lyman n. - 2d ed. - New York, Wiley [1935 - xii, 248 p. illus. 24 cm.
0471093319
Differential equations.
MCE
515.35 / KEL
Elementary differential equations L-1,P50 Kell, Lyman n. - 2d ed. - New York, Wiley [1935 - xii, 248 p. illus. 24 cm.
0471093319
Differential equations.
MCE
515.35 / KEL