APA
(1969). Indian National Group of the International Association for Bridge and Structural Engineering. Annual Bulletin 1969. New Delhi: INDIAN NATIONAL GROUP OF THE IABSE.
Chicago
1969. Indian National Group of the International Association for Bridge and Structural Engineering. Annual Bulletin 1969. New Delhi: INDIAN NATIONAL GROUP OF THE IABSE.
Harvard
(1969). Indian National Group of the International Association for Bridge and Structural Engineering. Annual Bulletin 1969. New Delhi: INDIAN NATIONAL GROUP OF THE IABSE.
MLA
Indian National Group of the International Association for Bridge and Structural Engineering. Annual Bulletin 1969. New Delhi: INDIAN NATIONAL GROUP OF THE IABSE. 1969.