XXII.—Notes on the Permian system of the counties of Durham and Northumberland
Howse, Richard
Article
1857
The Annals and magazine of natural history; zoology, botany, and geology
19
Series: 2
304--312
BioStor
London Taylor and Francis, Ltd
BioStor: https://biostor.org/reference/90592 DOI: https://doi.org/10.1080/00222935708693931