The Ordovician system of South America
Subtitle: correlation charts and explanatory notes
By: by F.G. Aceñolaza and B. Baldis.
Contributors: Baldis, B.
Series: IUGS publication ;; no. 22
Publisher: International Union of Geological Sciences
Published: 1987
Place of publication: Ottawa, Ont., Canada
Language: eng
Number of pages: 68
Subjects: Geology, Stratigraphic -- Ordovician.; Stratigraphic correlation -- South America.
Notes: Bibliography: p. 48-64.
Three folded maps in pocket.