Cita APA (7th ed.)
The world's great bridges / Smith, H. Shirley: Phoenix House Ltd 624.3 Sm649.
Cita Chicago (17th ed.)
The World's Great Bridges / Smith, H. Shirley: Phoenix House Ltd 624.3 Sm649.
Cita MLA (9th ed.)
The World's Great Bridges / Smith, H. Shirley: Phoenix House Ltd 624.3 Sm649.
Atenció: Aquestes cites poden no estar 100% correctes.