Reference = books that can only be used in the library
Circulating = take it with you for 3 weeks during the Fall and Spring semester. In the Summer semester, books are checked out for 2 weeks.
E-book= an electronic book, meaning its just like having a real book except you can read it online. Please check with your professor before using an e-book as a print source.
Most academic libraries use the LC classification system to organize their materials. Here are the call number ranges for specific areas of Emergency Management.