Secondary sources are books, articles, and documentaries created to describe, explain and/or evaluate historical events to people who did not experience them as participants or contemporaries.
For physical books in libraries, you need a call number and building location, and you need to know if the book is available. Write down call numbers because they are addresses for books.
Three places to find where call numbers are located in Ellis Library:
On the guides, you will compare the first part of the call number with the list to get the floor location.
Most books in Ellis Library have Library of Congress (not Dewey Decimal) call numbers that start with letters. Example: E373 .F67 2007.
Many databases don't contain the entire magazine, journal or newspaper article - just a little information identifying the article, sometimes with a summary or "abstract." To get the entire article, you will either click on a link that says "full text" or "download PDF" or "download article," or if these are not available, you'll click the button for 
to look for full text in some other database.
