-. (1972). Proceedings of the first annual convention Indonesian Petroleum Association. Jakarta: 23-25 June '72. Indonesian Petroleum Association.
Chicago Style (17th ed.) Citation-. Proceedings of the First Annual Convention Indonesian Petroleum Association. Jakarta: 23-25 June '72. Indonesian Petroleum Association, 1972.
MLA (8th ed.) Citation-. Proceedings of the First Annual Convention Indonesian Petroleum Association. Jakarta: 23-25 June '72. Indonesian Petroleum Association, 1972.
Warning: These citations may not always be 100% accurate.