Ahsan, Z. (2004). Differential Equations and Their Applications (2nd ed.). PHI Learning.
Цитирование в стиле Чикаго (17-е изд.)Ahsan, Zafar. Differential Equations and Their Applications. 2nd ed. New Delhi: PHI Learning, 2004.
Цитирование MLA (9-е изд.)Ahsan, Zafar. Differential Equations and Their Applications. 2nd ed. PHI Learning, 2004.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.