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
William Spurrell, 12 books
H. Meurig Evans, 8 books
Gordon Stowell, 8 books
Sir Thomas Herbert, 5 books
Robyn Lewis, 5 books
Edward Stanton Roberts, 4 books
E. Holdsworth, 4 books
John Davies, 4 books
Owen Parry, 4 books
Heini Gruffudd, 4 books
D. Ben Rees, 4 books
R. Bryn Williams, 3 books
Salesbury, William, 3 books
D. Geraint Lewis, 3 books
Megan Hayes, 3 books
Williams, John, 3 books
Robert John Pryse, 3 books
D. Ben Rees, 3 books
Delyth Prys, 3 books
Ioan Roberts, 3 books
Linda Russon, 3 books
Selwyn Hughes, 3 books
Heini Gruffudd, 3 books
William Owen Pughe, 3 books
Clare Taylor, 3 books