APA (7th ed.) Citation

Ion, D. C. (1975). Availability of world energy resources. Graham and Trotman Ltd.

Chicago Style (17th ed.) Citation

Ion, D. C. Availability of World Energy Resources. London: Graham and Trotman Ltd, 1975.

MLA (9th ed.) Citation

Ion, D. C. Availability of World Energy Resources. Graham and Trotman Ltd, 1975.