1.
図書 |
by J.P. Vinay in collaboration with W.O. Thomas
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2.
図書 |
H. Meurig Evans, W.O. Thomas ; golygydd ymgynghorol (consulting editor), Stephen J. Williams
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3.
図書 |
H. Meurig Evans, W. O. Thomas ; golygydd ymgynghorol (consulting editor): Stephen J. Williams
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4.
図書 |
H. Meurig Evans, W.O. Thomas ; golygydd ymgynghorol (consulting editor), Stephen J. Williams
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5.
図書 |
[by] H. Meurig Evans [and] W.O. Thomas ; golygydd ymgynghorol (consulting editors): Stephen J. Williams [and] Thomas Jones
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