Ref: 122760/2006-10-01
Other Database Pages Exist for this Phrase:
Lexicon from 'Slack coal' until 'stepped roof'
Lexicon from 'Slack coal' until 'stepped roof'
Coal (Coal is formed from plant and animal matter that ...)
Bituminous coal (A Bituminous coal is a dense, black, soft coal, ...)
Bituminous coal (Bituminous coal is characterized as a dense coal ...)