One good reason to start your research early is that your perfect source may not be in Hege Library. But you can request or borrow many sources -- including print books and articles -- from other libraries using these programs:
Try putting phrases in quotation marks. For example, instead of searching for Fidel Castro, try "Fidel Castro". This one change can make a big difference!
Boolean operators like AND and OR can greatly narrow down or expand your search terms. A search for "Fidel Castro" AND socialism yields 5,600 results, while "Fidel Castro" OR socialism yields more than 21,000,000!
To learn more, watch this video!