Pontryagin, L. S., Kacinskas, L., & Counts, W. B. (1962). Ordinary differential equations. Addison-Wesley.
Chicago Style (17th ed.) CitationPontryagin, Lev Semenovich, Leonas Kacinskas, and Walter B. Counts. Ordinary Differential Equations. Reading, Massachusetts: Addison-Wesley, 1962.
MLA (9th ed.) CitationPontryagin, Lev Semenovich, et al. Ordinary Differential Equations. Addison-Wesley, 1962.