APA (7th ed.) Citation

Jonker, J. (2007). A history of Royal Dutch Shell: 1 From challenger to joint industry leader, 1890 - 1939. A history of Royal Dutch Shell.

Chicago Style (17th ed.) Citation

Jonker, Joost. "A History of Royal Dutch Shell: 1 From Challenger to Joint Industry Leader, 1890 - 1939." A History of Royal Dutch Shell 2007.

MLA (8th ed.) Citation

Jonker, Joost. "A History of Royal Dutch Shell: 1 From Challenger to Joint Industry Leader, 1890 - 1939." A History of Royal Dutch Shell, 2007.