(1973). Geiriadur termau: Cyhoeddwyd ar ran Ysgol Addysg Prifysgol Cymru. Publ. on behalf of the Univ. of Wales School of Education = Dictionary of terms. Univ. of Wales Press.
Chicago-Zitierstil (17. Ausg.)Geiriadur Termau: Cyhoeddwyd Ar Ran Ysgol Addysg Prifysgol Cymru. Publ. on Behalf of the Univ. of Wales School of Education = Dictionary of Terms. Cardiff: Univ. of Wales Press, 1973.
MLA-Zitierstil (9. Ausg.)Geiriadur Termau: Cyhoeddwyd Ar Ran Ysgol Addysg Prifysgol Cymru. Publ. on Behalf of the Univ. of Wales School of Education = Dictionary of Terms. Univ. of Wales Press, 1973.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.