APA (7e ed.) Bronvermelding

Ahuja, T. (1978). Roads, railways bridges and tunnel engineering (5th ed.). Standard book House.

Chicago (17e ed.) Bronvermelding

Ahuja, T.D. Roads, Railways Bridges and Tunnel Engineering. 5th ed. Delhi: Standard book House, 1978.

MLA (9e ed.) Bronvermelding

Ahuja, T.D. Roads, Railways Bridges and Tunnel Engineering. 5th ed. Standard book House, 1978.