Vatssa, B. S. (1996). Modern Algebra (2nd ed.). Modern Book Centre.
Cita Chicago (17th ed.)Vatssa, B. S. Modern Algebra. 2nd ed. New Delhi: Modern Book Centre, 1996.
Cita MLA (9th ed.)Vatssa, B. S. Modern Algebra. 2nd ed. Modern Book Centre, 1996.
Atenció: Aquestes cites poden no estar 100% correctes.