APA

Masters C. D., Root D. H., Dietzman D., Geological Survey, World Petroleum Congress (11th. : 1983 : London), Root D. H., Dietzman D. & Geological Survey.Distribution and quantitative assessment of world crude oil reserves and resources. : .

Chicago

Masters Charles D, Root David H, Dietzman D, Geological Survey, World Petroleum Congress (11th. : 1983 : London), Root David H, Dietzman D and Geological Survey.Distribution and quantitative assessment of world crude oil reserves and resources. : .

Harvard

Masters C. D., Root D. H., Dietzman D., Geological Survey, World Petroleum Congress (11th. : 1983 : London), Root D. H., Dietzman D. and Geological Survey.Distribution and quantitative assessment of world crude oil reserves and resources. : .

MLA

Masters Charles D, Root David H, Dietzman D, Geological Survey, World Petroleum Congress (11th. : 1983 : London), Root David H, Dietzman D and Geological Survey.: . .