Vreden, W., & Scot, J. (1969). Curved continuous beams for highway bridges. Frederick Ungar Pub. Co..
Citazione stile Chigago Style (17a edizione)Vreden, Werner, e John Scot. Curved Continuous Beams for Highway Bridges. New York: Frederick Ungar Pub. Co., 1969.
Citatione MLA (9a ed.)Vreden, Werner, e John Scot. Curved Continuous Beams for Highway Bridges. Frederick Ungar Pub. Co., 1969.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.