APA

Gorrill R., Henderson I., Myhill N., Shell, World Petroleum Congress (11th. : 1983 : London), Henderson I., Myhill N. & Shell.Operational progress of the peace river in situ project. : .

Chicago

Gorrill R.G, Henderson I.G, Myhill N.A, Shell, World Petroleum Congress (11th. : 1983 : London), Henderson I.G, Myhill N.A and Shell.Operational progress of the peace river in situ project. : .

Harvard

Gorrill R., Henderson I., Myhill N., Shell, World Petroleum Congress (11th. : 1983 : London), Henderson I., Myhill N. and Shell.Operational progress of the peace river in situ project. : .

MLA

Gorrill R.G, Henderson I.G, Myhill N.A, Shell, World Petroleum Congress (11th. : 1983 : London), Henderson I.G, Myhill N.A and Shell.: . .