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
John K. Bollard, 2 books
Richard Eastwood, 2 books
John Matthews, 1 book
Meg Falconer, 1 book
Meirion Hughes, 1 book
Margaret Jones, 1 book
Gwyn Jones, 1 book
John Emlyn Edwards, 1 book
Dorothy Maas, 1 book
Robert Nye, 1 book
Gwyn Thomas, 1 book
Caitlín Matthews, 1 book
T.Llew Jones, 1 book
Janet Samuel, 1 book
Myrddin ap Dafydd., 1 book
Robin Gwyndaf, 1 book
Richard Holland, 1 book