APA

(1978). Indian Roads Congress. 37th annual session, Bhopal, December, 1976. New Delhi: .

Chicago

1978. Indian Roads Congress. 37th annual session, Bhopal, December, 1976. New Delhi: .

Harvard

(1978). Indian Roads Congress. 37th annual session, Bhopal, December, 1976. New Delhi: .

MLA

Indian Roads Congress. 37th annual session, Bhopal, December, 1976. New Delhi: . 1978.