If you have the DOI for an article or ISBN for a book, you can use it to add a record for that publication. 

Select whether you have a DOI or ISBN, then enter the number and click "Next."

The system automatically retrieves the title and other information for the publication. 

If you have a PDF or other file, you can select to "Attach a file." If it is a publication the library has online access to, you do not need to attach a file, the system will automatically add a link to the online version. Just click "Next" where you can edit any bibliographic information if necessary, then "Next" again to select which section of the reading list to add the item, notes for students, due dates, etc. Then click to "Add" it to your list.