Cita APA (7a ed.)
Akhtar, A., & Ahsan, S. (2004). Textbook of differential calculus. Prentice-Hall.
Cita Chicago Style (17a ed.)
Akhtar, Ahsan, y Sabiha Ahsan. Textbook of Differential Calculus. New Delhi: Prentice-Hall, 2004.
Cita MLA (9a ed.)
Akhtar, Ahsan, y Sabiha Ahsan. Textbook of Differential Calculus. Prentice-Hall, 2004.
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