Casgliadau Arlein
Amgueddfa Cymru
Chwilio Uwch
Handbook on ground control at small coal mines
Health and Safety Executive
(publisher)
Contract Research Report 264/2000. 32 page booklet.
Pwnc
Diwydiant
Rhif yr Eitem
2007.12/9
Creu/Cynhyrchu
Derbyniad
purchase, 8/2/2007
Mesuriadau
Meithder
(mm): 298
Lled
(mm): 213
Uchder
(mm): 5
Deunydd
papur
Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.