Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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