Cita APA

Armstead, C. C., & Armstead, C. C. (1978). Geothermal energy: Its past, present and future contributions to the energy needs of man. London, Sydney: E F N Spon.

Citación estilo Chicago

Armstead, Christopher C.H., y Christopher C.H Armstead. Geothermal Energy: Its Past, Present and Future Contributions to the Energy Needs of Man. London, Sydney: E F N Spon, 1978.

Cita MLA

Armstead, Christopher C.H., y Christopher C.H Armstead. Geothermal Energy: Its Past, Present and Future Contributions to the Energy Needs of Man. London, Sydney: E F N Spon, 1978.