RAINVILLE, Earl D.
Elementary differential equations - 3rd ed. - New York The Macmillan 1964 - xvi, 521 p.
74319
Differential equations
515.35 / RAI
Elementary differential equations - 3rd ed. - New York The Macmillan 1964 - xvi, 521 p.
74319
Differential equations
515.35 / RAI