Guide to articles published in American magazines from 1890 to 1980. Use this in combination with either HathiTrust or the Rod Library "Journal Search" and print magazines located in the library basement - primarily at call number AP2. To find magazine article in print type the magazine name in the Rod Library "Journal Search" and get a "UNI Periodicals" call number for the 1st floor. To find a digital copy of a magazine article, go to HathiTrust, click on Advanced full-text Search, type the name of the magazine in the "Title" search blank and then click on "Advanced Search", click on the Catalog Record of the magazine you're interested in, if the dates covered aren't present consider clicking on one of the "Similar Items" on the right-hand side of the results page.
Though the links above and below go to the Chicago quick guide - the full print Chicago Manual of Style is available for more complicated questions. These large print volumes can be found both at the Library Services Desk and in the Stacks.