Dyfyniad APA

American Society of Civil Engineers & DeLony, E. (1993). Landmark American bridges. Published in association with American Society of Civil Engineers. https://doi.org/10.1061/9780872628571

Dyfyniad Arddull Chicago

American Society of Civil Engineers and Eric DeLony. Landmark American Bridges. New York: Published in association with American Society of Civil Engineers, 1993. https://doi.org/10.1061/9780872628571.

Dyfyniad MLA

American Society of Civil Engineers and Eric DeLony. Landmark American Bridges. Published in association with American Society of Civil Engineers, 1993. https://doi.org/10.1061/9780872628571.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.