Coal--size--degradation
Subtitle: a survey of research published prior to 1939
By: by R.L. Brown.
Series: NCB Coal Utilisation Research Laboratory. Document -- no. C/601.
Publisher: [The British Coal Utilisation Research Association
Published: 1939
Place of publication: London
Language: eng
Number of pages: 71
Subjects: Coal -- Analysis.; Heating.
Notes: At head of title: Document no. C/601. Reference 12/05/5. May 1939.