Cita APA (7th ed.)

(1987). Census of India, 1931.-- Calcutta. Central Pub Branch; Usha Pub.

Cita Chicago (17th ed.)

Census of India, 1931.-- Calcutta. New Delhi: Central Pub Branch; Usha Pub, 1987.

Cita MLA (9th ed.)

Census of India, 1931.-- Calcutta. Central Pub Branch; Usha Pub, 1987.