I need to do some research for an informative essay on diabetes.
We have lots of great resources to get you started:
For books go to WorldCat (link below) and search. Just search using the term diabetes and you'll find lots of books and eBooks.
And finally, you can grab citations from WorldCat, EBSCO and Gale. The Cite MLA the EZ Way! page in the MLA Style LibGuide shows how to grab them and then tweak them to make them just right (link below).