Do not italicize. Use the first letter of the title to alphabetize your bibliography just as you would with an author’s name. Instead, you’ll have to determine what kind of source the PDF is (e.g., a book, a journal article) and cite it in the appropriate format In APA. If you can’t find an author for a particular PDF, put the title of the source first in the works-cited citation, followed by the year of publication. And since you will almost always find a PDF on the internet, you'll want to inc