Citazione Stile APA (7a Edizione)
Hewson, N. Prestressed Concrete Bridges: Design and Construction (2a edición.). Institution of Civil Engineers.
Citazione stile Chigago Style (17a edizione)
Hewson, Nigel. Prestressed Concrete Bridges: Design and Construction. 2a edición. Londres, Inglaterra: Institution of Civil Engineers.
Citatione MLA (9a ed.)
Hewson, Nigel. Prestressed Concrete Bridges: Design and Construction. 2a edición. Institution of Civil Engineers.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.