If the library does not already own or have online access to a publication, and you do not own a copy to upload, you can request that the library acquire a copy and add it to your reading list. 

When you click to fill in a request form, the first section asks for the type of publication and its title. Click "Next" to fill out as much of the bibliographic information for the publication you can add, or at least enough so the library can get the specific item you want. Then select which section of your reading list to add it to, add any notes for students, etc. Click to "Add," and the library will be notified of your request and acquire a physical or online copy as appropriate and add it to your course reading list.