Library research -- Research beyond the library -- United States -- The Northeast : Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont, and Washington, D.C. -- The South and Southern Highlands : Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, West Virginia -- The Midwest : Illinois, Indiana, Iowa, Kansas, Michigan, Minnesota, Missouri, Nebraska, Ohio, Wisconsin -- The Southwest : Arizona, New Mexico, Oklahoma, Texas -- The West : California, Colorado, Nevada, Utah, Wyoming -- The Northwest : Idaho, Montana, North Dakota, Oregon, South Dakota, Washington -- Alaska -- Hawaii.