Libraries

Find out which libraries hold the titles you need — WorldCat combines the catalogs of many (but not all) libraries. When in doubt, search a library's own catalog, which is usually available on its web site. Inquire about the U.S. Department of the Interior Library's Interlibrary Loan service and save yourself a trip.

U.S. Department of the Interior libraries

• Bureau of Land Management Library 
  Denver, Colorado
• Fish and Wildlife Service Conservation Library 
  Shepherdstown, West Virginia
• U.S. Geological Survey Library 
  Reston, Virginia; Denver, Colorado; Menlo Park, California; and Flagstaff, Arizona
• BRD Libraries 
  Biological Resources Division, USGS
• National Park Service Library Program

Federal libraries

• Library of Congress
• National Agricultural Library
• National Library of Medicine
• National Archives Library Information Center
• National Oceanic and Atmospheric Administration, Central Library
• Smithsonian Institution Libraries

University libraries

• University of Maryland System Libraries
• Washington Research Library Consortium
  The Washington Research Library Consortium is a regional resource-sharing organization. Members include American University, The Catholic University of America, Gallaudet University, George Mason University, George Washington University, Georgetown University, Marymount University, Trinity College and The University of the District of Columbia.
• University of Virginia Library

Public libraries

• PASSPORT to Your Local Public Libraries 
  PASSPORT is a directory of the 137 public library branches of 11 public library systems located throughout the Washington metropolitan area, and is produced by the Metropolitan Washington Council of Governments.

Other libraries

• Alaska Resources Library & Information Services
• National Indian Law Library 
  A public law library devoted to federal Indian and tribal law
• National Sea Grant Library
• National Trust for Historic Preservation Library
• Presidential Libraries

Directories of Libraries on the Internet

• Libweb 
  Largest directory of libraries around the world
• Law School Library and State Law Library Catalogs
• Federal Document Depository Libraries 
  Locate libraries that collect U.S. federal documents
• Natural History Libraries 
  List provided by the Special Libraries Association Natural History Caucus
• Repositories of Primary Sources 
  The University of Idaho presents a comprehensive list of rare book and manuscript collections