Coal of the carboniferous era not made of bark
Article
1874
The Annals and magazine of natural history; zoology, botany, and geology
14
Series: 4
463--463
BioStor
English
London Taylor and Francis, Ltd
BioStor: https://biostor.org/reference/91611 DOI: https://doi.org/10.1080/00222937408681015
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