There are many books in hard copy that can be useful to you. Some are in the Reference Collection (REF) which is located in the northwest corner of the second floor of the Library. Turn left past the elevators, go all the way to the back, and look to your right. Other books are in the Main Stacks. Roman history is mostly in the D classification, located on the third floor, while American history is in E and F, also on the third floor.