Edwards, J. (1992). An elementary treatise on the differential calculus. Radha Publishing House.
Cita Chicago (17th ed.)Edwards, Joseph. An Elementary Treatise on the Differential Calculus. Kolkata: Radha Publishing House, 1992.
Cita MLA (8th ed.)Edwards, Joseph. An Elementary Treatise on the Differential Calculus. Radha Publishing House, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.