Παραπομπή APA

Singh, S. . .., & Singh, S. . .. (1992). Colon classification: A select bibliography. Ess Ess.

Παραπομπή Chicago Style

Singh, Sewa ., και Sukhbir Singh. Colon Classification: A Select Bibliography. New Delhi: Ess Ess, 1992.

Παραπομπή MLA

Singh, Sewa ., και Sukhbir Singh. Colon Classification: A Select Bibliography. Ess Ess, 1992.