APA aipamena

AHUJA TD,BIRDI GS. (1980). ROADS,RAILWAY,BRIDGES AND TUNNEL ENGG. STANDARD BOOK HOUSE.

Chicago Style aipamena

AHUJA TD,BIRDI GS. ROADS,RAILWAY,BRIDGES AND TUNNEL ENGG. DELHI: STANDARD BOOK HOUSE, 1980.

MLA aipamena

AHUJA TD,BIRDI GS. ROADS,RAILWAY,BRIDGES AND TUNNEL ENGG. STANDARD BOOK HOUSE, 1980.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.