APA (7th ed.) Citation

-. (1989). Oil & gas fields atlas: 1.North Sumatra & Natuna 2.Central Sumatra 3.South Sumatra 4.Java 5.Kalimant. Indonesian Petroleum Association.

Chicago Style (17th ed.) Citation

-. Oil & Gas Fields Atlas: 1.North Sumatra & Natuna 2.Central Sumatra 3.South Sumatra 4.Java 5.Kalimant. Indonesian Petroleum Association, 1989.

MLA (8th ed.) Citation

-. Oil & Gas Fields Atlas: 1.North Sumatra & Natuna 2.Central Sumatra 3.South Sumatra 4.Java 5.Kalimant. Indonesian Petroleum Association, 1989.

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