Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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