APA (7 वां संस्करण) प्रशस्ति पत्र
Ahsan, Z. (2004). Differential equations and their applications (2nd ed.). Prentice Hall of India.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Ahsan, Zafar. Differential Equations and Their Applications. 2nd ed. New Delhi: Prentice Hall of India, 2004.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Ahsan, Zafar. Differential Equations and Their Applications. 2nd ed. Prentice Hall of India, 2004.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.