APA-referens

Armstead, H. C. H. (1983). Geothermal energy: Its past present and future contributions to the energy needs of man. E&FN Spon.

Chicago-stil citat

Armstead, H. Christopher H. Geothermal Energy: Its Past Present and Future Contributions to the Energy Needs of Man. London: E&FN Spon, 1983.

MLA-referens

Armstead, H. Christopher H. Geothermal Energy: Its Past Present and Future Contributions to the Energy Needs of Man. E&FN Spon, 1983.