Bibliography of doctoral dissertations 1975-76: natural and applied sciences /

Eitemau Tebyg

• Bibliography of doctoral dissertations 1990: natural and applied sciences /
  Cyhoeddwyd: (1994)
• Bibliography of doctoral dissertations 1979-80: Natural and applied sciences /
  Cyhoeddwyd: (1982)
• Bibliography of doctoral dissertations 1983-84: natural and applied sciences /
  Cyhoeddwyd: (1987)
• Bibliography of doctoral dissertations 1982-83: natural and applied sciences /
  Cyhoeddwyd: (1986)
• Bibliography of doctoral dissertations 1978-79: natural and applied sciences /
  Cyhoeddwyd: (1980)