(1956). A master plan of highways for the Lowell-Lawrence-Haverhill Metropolitan Areas: Prepared for the Massachusetts Department of Public Works and the U.S. Department of Commerce Bureau of Public Roads. Boston: Commonwearth of Massachusetts.
Παραπομπή Chicago StyleA Master Plan of Highways for the Lowell-Lawrence-Haverhill Metropolitan Areas: Prepared for the Massachusetts Department of Public Works and the U.S. Department of Commerce Bureau of Public Roads. Boston: Commonwearth of Massachusetts, 1956.
Παραπομπή MLAA Master Plan of Highways for the Lowell-Lawrence-Haverhill Metropolitan Areas: Prepared for the Massachusetts Department of Public Works and the U.S. Department of Commerce Bureau of Public Roads. Boston: Commonwearth of Massachusetts, 1956.