Cita APA (7th ed.)

SINGAL, M. (1976). Sets and numbers. R.Chand.

Cita Chicago (17th ed.)

SINGAL, M.K. Sets and Numbers. New Delhi: R.Chand, 1976.

Cita MLA (9th ed.)

SINGAL, M.K. Sets and Numbers. R.Chand, 1976.

Atenció: Aquestes cites poden no estar 100% correctes.