Preliminary report on biostratigraphic units
By: by International Subcommission on Stratigraphic Classification.  Hollis D. Hedberg, editor
Contributors: Hedberg, Hollis Dow, 1903- editor; International Geological Congress (24th : 1972 : Montréal, Québec)
Series: Its Report -- no. 5
Published: 1971
Place of publication: Montreal
Language: eng
Number of pages: 50
Subjects: Stratigraphic Geology
Notes: "Publication arranged for by the Organizing Committee of the 24th International Geological Congress."

Bibliography: p. 45-47.