The Ordovician system in Australia, New Zealand and Antarctica
Subtitle: correlation chart and explanatory notes
By: by B.D. Webby ... [et al.] ; [compiled and edited by B.D. Webby]
Contributors: Webby, B. D.; International Union of Geological Sciences. International Subcommission on Ordovician Stratigraphy.
Series: Publication / International Union of Geological Sciences -- 6.
Publisher: International Union of Geological Sciences
Published: 1981
Place of publication: Paris; Ottawa
Language: eng
Number of pages: 64
Subjects: Geology, Stratigraphic -- Ordovician.; Geology -- Australia.; Geology -- New Zealand.; Geology -- Antarctica.
Notes: "Sponsored by the International Subcommission on Ordovician Stratigraphy".

Two charts in pocket.