APA (7th ed.) Citation

GRACE,Robert. (2007). Oil an Overview of the petroleum industry. Gulf Publishing Company.

Chicago Style (17th ed.) Citation

GRACE,Robert. Oil an Overview of the Petroleum Industry. Gulf Publishing Company, 2007.

MLA (8th ed.) Citation

GRACE,Robert. Oil an Overview of the Petroleum Industry. Gulf Publishing Company, 2007.

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