Proceedings of the Pan-American Road Congress, held under the joint auspices of the American Road Builders' Association and the American Highway Association with the cooperation of the Pacific Highway Association and the Tri-state Good Roads Association, at Oakland, California, September 13, 14, 15, 16 and 17, 1915
Pan-American Road Congress (1st : 1915 : Oakland, Cal.); American Road Builders' Association; American Highway Association; Pacific Highway Association; Tri-state Good Roads Association