England and Wales, a palaeogeological map of the palaeozoic floor below the Upper Permian and Mesozoic formations : with inferred and speculative reconstructions of the Palaeozoic outcrops in adjacent areas as in Permo-Triassic times /
Willis, L. J.
London : The Geological Society,
1973.
2 copies.
Accompanied by: "A palaeogeological map of the palaeozoic floor below the Permian and Mesozoic formations in England and Wales with inferred and speculative reconstructions of the Palaeozoic outcrops in adjacent areas as in Permo-Triassic times" (Memoir Geological Society of London No.7)