APA ציטוט

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.

ציטוט MLA

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