Distribution of the Middle Ordovician Copenhagen formation and its trilobites in Nevada /

Bibliographic Details
Main Authors: Ross, Reuben James, 1918-, Shaw, Frederick C., 1937- (Author)
Format: Government Document Book
Language:English
Published: Washington : U.S. Govt. Print. Off, 1972.
Series:Geological Survey professional paper ; 749.
Subjects:
Description
Physical Description:iii, 33 pages, 17 unnumbered pages : illustrations ; 30 cm.
Bibliography:Bibliography: pages 29-30.