This usually requires setting up your browser to use a proxy server. Carefully follow the instructions on your library's home page and call reference librarians with ANY questions. Ask at your local academic, school or public library for details. Read the article in the library or take the volume to the copy center to photocopy the article. In some libraries you may be able to check out the volume with the article you need.
Most libraries arrange magazines and journals by call number.
Some libraries arrange them alphabetically by title. Ask for help at the reference desk if you can't find the article you are looking for. Libraries collect journal issues and bind them together in a hard cover to protect them. If it is an older issue that has been hard bound it may be housed in a different area and you can use the call number to find it on the shelf. Many journals are now electronic or available via full text.