Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
United States. Bureau of Labor Statistics and Association of Governmental Officials in Industry of the United States and Canada,"Association of Governmental Officials in Inudstry of the Untied States and Canada (formerly Association of Governmental Labor Officials) : sixteenth annual convention, Toronto, Canada, June 4-7, 1929",,"U.S. G.P.O.,For sale by the Supt. of Docs., U.S. G.P.O.",1930,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282272863774848