大協石油株式会社30年史
Series: Nihon shashi zenshū
Publisher: Tokiwa Shoin
Published: 1977
Place of publication: Tōkyō
Language: jpn
Number of pages: 146
Subjects: History; Daikyō Sekiyu Kabushiki Kaisha
Other titles: Daikyō Sekiyu Kabushiki Kaisha 30-nenshi; Daikyō Sekiyu sanjūnenshi.
Notes: Colophon/spine title: Daikyō Sekiyu sanjūnenshi.

Reprint of the 1969 ed. published by Daikyō Sekiyu Kabushiki Kaisha, Tokyo.