Sir Ralph Freeman
- Sir Ralph Freeman, 1880-1950. In: Journal of the Institution of Civil Engineers, v. 34, n. 7 (May 1950), pp. 276.
- Sydney Harbour Bridge: Design of the Structure and Foundations. In: Minutes of the Proceedings of the Institution of Civil Engineers, v. 238, n. 1934-2 ( 1934), pp. 153-193, photographs, plates. (1934):