Virtual Reference Shelf
Official Time from the National Institute of Standards and Technology.
Zip Codes from the US Postal Service. Do you need a ZIP + 4 Code(s) for an individual address or city? Or all cities in a ZIP Code?
On-line Books An index of thousands of full text books available free on the Internet
Translator page from English to the language of your choice, or enter a URL to translate the contents.
Dictionaries --links to dictionaries in English, specialty fields, and foreign languages. Also includes thesauri, acronyms and encyclopedias
YourDictionary.com, another impressive list of word tools.
Geographic names index from USGS
U.S. Department of the Interior, U.S. Geological Survey,
Patuxent Wildlife Research Center, Laurel, MD, USA
Contact: PWRC Library
Last Modification: July 23, 2015
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