Citazione Stile APA (7a Edizione)

SINGAL, M. (1976). Sets and numbers (2nd ed.). R.Chand.

Citazione stile Chigago Style (17a edizione)

SINGAL, M.K. Sets and Numbers. 2nd ed. New Delhi: R.Chand, 1976.

Citatione MLA (9a ed.)

SINGAL, M.K. Sets and Numbers. 2nd ed. R.Chand, 1976.