Ahuja, T. (1978). Roads, railways bridges and tunnel engineering (5th ed.). Standard book House.
Citace podle Chicago (17th ed.)Ahuja, T.D. Roads, Railways Bridges and Tunnel Engineering. 5th ed. Delhi: Standard book House, 1978.
Citace podle MLA (9th ed.)Ahuja, T.D. Roads, Railways Bridges and Tunnel Engineering. 5th ed. Standard book House, 1978.
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