APA (7th ed.) Citation

Powell, R. (1985). Oedfa'r Chwiorydd. Penry.

Chicago Style (17th ed.) Citation

Powell, Rebecca. Oedfa'r Chwiorydd. Albertawe: Penry, 1985.

MLA (8th ed.) Citation

Powell, Rebecca. Oedfa'r Chwiorydd. Penry, 1985.

Warning: These citations may not always be 100% accurate.