Publishing History

This is a chart to show the publishing history of editions of works about this subject. Along the X axis is time, and on the y axis is the count of editions published. Click here to skip the chart.  This graph charts editions published on this subject.
Editions Published
Year of Publication

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Prolific Authors

who have written the most books on this subject
Johnny Molloy, 3 books
Steve Kemp, 3 books
Laura Thornborough, 2 books
Rose Houk, 2 books
Carlos C. Campbell, 2 books
Bill Lea, 2 books
Kevin Adams, 2 books
Harry L. Moore, 2 books
Steven C. Vandam, 1 book
Ed Trout, 1 book
Jim Hargan, 1 book
David Lukas, 1 book
United States Geographic Board., 1 book
Ellen Crain, 1 book
Blair Howard, 1 book
Rodney Albright, 1 book
Tim McNulty, 1 book
Tim Hollis, 1 book
Michal Strutin, 1 book
National Park Service Staff, 1 book
Michael Read, 1 book
Steve Cotham, 1 book
Priscilla Albright, 1 book
Katy Koontz, 1 book
Kat LaFevre, 1 book