The Reference Collection is located on the first floor of Richardson Library. Reference books include mostly factual resources on all topics like: dictionaries, handbooks, topical encyclopedias, directories, bibliographies and more. Reference materials can only be used in the library and can't be checked out.
Some reference materials are located in the closed stacks and can be requested at the circulation desk.
Oxford English Dictionary PE1625 .O87 1989 (20 volumes)
The OED is the most comprehensive and regarded as the most authoritative source for word definitions, etymologies and examples in the Enligsh Language.