Stratigraphic notes, 1989-90.
Contributors: Geological Survey (U.S.)
Series: U.S. Geological Survey bulletin -- 1935
Publisher: U.S. G.P.O.; For sale by the Book and Open-File Reports Section, U.S. Geological Survey
Published: 1991
Place of publication: Washington; Denver, CO
Language: eng
Number of pages: 40
Subjects: Geology, Stratigraphic -- Nomenclature.; Geology -- United States -- Nomenclature.
Genres: Nomenclature.