Description
Item Description:"28 April 1988."
"International Union of Geological Sciences sponsored publication."
"The papers incorporated in this volume represent contributions from the International Working Group on the Ordovician-Silurian Boundary, a constituent body of the International Commission on Stratigraphy within the International Union of Geological Sciences."
Physical Description:394 pages : illustrations, maps ; 25 cm.
Bibliography:Includes bibliographies and index.
ISBN:0565070207
ISSN:0007-1471 ;