Sekiyu sangyō no kenkyū
Subtitle: Kokusai genʼyu kakaku no kenkyū
By: Sekiyu Mondai Kenkyūkai hen
Series: Kenkyū sankō shiryō -- dai 130-shū; Kenkyū sankō shiryō -- dai 130-shū.
Publisher: Ajia Keizai Kenkyūjo
Published: 1967
Place of publication: Tōkyō
Language: jpn
Number of pages: 283
Subjects: Petroleum products; Prices
Other titles: Kokusai genʼyu kakaku no kenkyū
Notes: Includes bibliographical references.