Hartman, P. (2002). Ordinary differential equations. Philadelphia: Society for Industrial and Applied Mathematics.
Chicago-стиль цитированияHartman, Philip. Ordinary Differential Equations. Philadelphia: Society for Industrial and Applied Mathematics, 2002.
MLA-цитированиеHartman, Philip. Ordinary Differential Equations. Philadelphia: Society for Industrial and Applied Mathematics, 2002.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.