Le bassin houiller et la houille du Northumberland et du Durham (nord de l’Angleterre)
Page : Planche 2
Révision de 7 mai 2020 15:53:05, edited by 77.158.173.76
[schéma] Section from the Pentland hells , Scotland to the river Tees , England
Page : Planche 2
[schéma] Section from the Pentland hells , Scotland to the river Tees , England