(1928). Post route map of the state of Idaho showing post offices with the intermediate distances of mail routes in operation on the 1st of May 1928. Post Office Department.
Chicago Style (17th ed.) CitationPost Route Map of the State of Idaho Showing Post Offices with the Intermediate Distances of Mail Routes in Operation on the 1st of May 1928. Washington, D.C.: Post Office Department, 1928.
MLA (8th ed.) CitationPost Route Map of the State of Idaho Showing Post Offices with the Intermediate Distances of Mail Routes in Operation on the 1st of May 1928. Post Office Department, 1928.
Warning: These citations may not always be 100% accurate.