Citazione Stile APA (7a Edizione)

Singh, M. (1988). GHC: A combined course (New edition, first published 1987.). Soma Group Limited.

Citazione stile Chigago Style (17a edizione)

Singh, Malkiat. GHC: A Combined Course. New edition, first published 1987. Nairobi: Soma Group Limited, 1988.

Citatione MLA (9a ed.)

Singh, Malkiat. GHC: A Combined Course. New edition, first published 1987. Soma Group Limited, 1988.