The author of the Ordovician system
Subtitle: Charles Lapworth, M.Sc., LL.D., F.R.S., F.G.S.
Published: 1939
Place of publication: Place of publication not identified]
Language: eng
Number of pages: 286
Notes: Cover-title.

"Reprinted from the Proceedings of the Geologists' Association, vol. L., part 2, 1939. Pages 235-286."