If you picked a topic but didn't do any reading about it, these databases are a good place to start. They provide big picture, overview information similar to what you find in Wikipedia, but are written by experts rather than the general public who write and edit Wikipedia entries.
Use OneSearch to find books, eBooks, articles, videos, scores and more available in the duPont-Ball Library.
These library databases include magazine articles, newspaper articles, scholarly articles, and other published sources on various topics. Look for an option to generate a citation, and to send yourself a link.