The Annual Statement Studies Financial Ratio Benchmarks book is in the MPC Library Reference Section (located in front of the circulation/checkout desk) and it is a two volume set. This is a great resource to find financial ratio benchmarks for a variety of businesses. If you find a good page or two of information you can photocopy it or scan it (they are reference books so you cannot check them out to take home)..
Annual Statement Studies-Financial Ratio Benchmarks by