Decimal system for classifying data pertaining  to the petroleum industry
By: by Lester C. Uren.
Edition: [3d ed.].
Publisher: University of California Press
Published: 1953
Place of publication: Berkeley, CA
Language: eng
Number of pages: 92
Other titles: A decimal classification for the filing of data pertaining to the petroleum and related industries.
Notes: Includes index.

First published in l928 under title : A decimal classification for the filing of data pertaining to the petroleum and related industries.