World list of scientific periodicals

Eitemau Tebyg

• World list of scientific periodicals 19 /
  gan: BrownP
  Cyhoeddwyd: (1963)
• World list of scientific periodicals 19 /
  gan: BrownP
  Cyhoeddwyd: (1964)
• World list of scientific periodical 19 /
  gan: BrownP
  Cyhoeddwyd: (1965)
• World list of scientific periodicals
  gan: Butterworth and company
  Cyhoeddwyd: (1960)
• World list of Scientific periodicals. Published in the years 1900-1960 /
  gan: Brown, Peter
  Cyhoeddwyd: (1963)