AA Welsh leech bookA Welsh leech bookde Timothy LewisMateriasLeechesMedicinal PlantsMedicineEdiciones (2)A Welsh leech book (1924)D.S. Hughes · inglésA Welsh leech book (1914)D.S. Hughes · inglés, welMás obras de Timothy LewisA glossary of mediaeval Welsh law, based upon the Black book of ChirkForever FridayAn Introduction to Early Welsh