APA (7th ed.) Citation

-. (1978). Proceeding of the Seventh Annual Convention. Indonesian Petroleum Association.

Chicago Style (17th ed.) Citation

-. Proceeding of the Seventh Annual Convention. Indonesian Petroleum Association, 1978.

MLA (8th ed.) Citation

-. Proceeding of the Seventh Annual Convention. Indonesian Petroleum Association, 1978.

Warning: These citations may not always be 100% accurate.