Castell yr iechyd
By: gan Elis Gruffydd; golygwyd gan S. Minwel Tibbott.
Contributors: Gruffydd, Elis.; Tibbott, S. Minwel.
Publisher: Gwasg Prifysgol Cymru
Published: 1969
Place of publication: Caerdydd
Language: eng
Work titles: Castle of health