AHUJA TD,BIRDI GS. (1980). ROADS,RAILWAY,BRIDGES AND TUNNEL ENGG. STANDARD BOOK HOUSE.
Cita Chicago Style (17a ed.)AHUJA TD,BIRDI GS. ROADS,RAILWAY,BRIDGES AND TUNNEL ENGG. DELHI: STANDARD BOOK HOUSE, 1980.
Cita MLA (9a ed.)AHUJA TD,BIRDI GS. ROADS,RAILWAY,BRIDGES AND TUNNEL ENGG. STANDARD BOOK HOUSE, 1980.
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