Y Diwydiant cemegol
Subtitle: pynciau dethol
By: addasiad Cymraeg gan William M. Owen.
Contributors: Owen, William M.
Series: Estyn gwyddoniaeth
Publisher: D.Brown
Published: 1992
Place of publication: Y Bontfaen
Language: wel
Number of pages: 92
Work titles: The chemical industry: selected topics.