The superficial geology of the country adjoining the coasts of southwest Lancashire, comprised in sheet 90, quarter sheet 91 S. W., parts of 89 N. W. and S. W., 79 N. E. and 91 S. E., of the 1 inch geological survey map of England and Wales
De Rance, Charles Eugene, 1847-1906; Etheridge, Robert, 1819-1903