APA (7th ed.) Citation

Red Hen Press. (2011). A thonnau gwyllt y Môr =: And the wild waves of the sea. [Red Hen Press].

Chicago Style (17th ed.) Citation

Red Hen Press. A Thonnau Gwyllt Y Môr =: And the Wild Waves of the Sea. [Wales]: [Red Hen Press], 2011.

MLA (9th ed.) Citation

Red Hen Press. A Thonnau Gwyllt Y Môr =: And the Wild Waves of the Sea. [Red Hen Press], 2011.