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
M. Wynn Thomas, 4 books
Damian Walford Davies, 3 books
Belinda Humfrey, 3 books
Allchin, A. M., 3 books
Jeremy Hooker, 3 books
Pennar Davies, 2 books
Roland Mathias, 2 books
H. Coombes, 2 books
Moira Dearnley, 2 books
Glyn Tegai Hughes, 2 books
Philip Schwyzer, 2 books
James Nicholas, 2 books
A. O. H. Jarman, 2 books
Derec Llwyd Morgan, 2 books
Alice Thomas Ellis, 2 books
John Ackerman, 2 books
Linden Peach, 2 books
W. John Morgan, 2 books
Myrddin ap Dafydd, 2 books
Chapman, T. Robin., 2 books
James A. Davies, 2 books
Huw M. Edwards, 2 books
Bedwyr Lewis Jones, 2 books
Adams, Sam, 2 books
Dewi M. Lloyd, 2 books