Information retrieval system: subject authority list.
Edition: 7th ed.
Publisher: American Petroleum Institute, Central Abstracting and Indexing Service]
Published: 1970
Place of publication: [New York
Language: eng
Number of pages: 455
Subjects: Subject headings -- Petroleum.
Notes: Cover title.
Third ed. published in 1966 under title: Information retrieval project: subject authority list.