APA citiranje

ARMSTEAD, H. C. H. Geothermal energy: Its past, present and future contributions to the enrgy needs of man Second. E & F.N. Spon.

Chicago Style (17th ed.) Citation

ARMSTEAD, H. Christopher H. Geothermal Energy: Its Past, Present and Future Contributions to the Enrgy Needs of Man Second. E & F.N. Spon.

MLA citiranje

ARMSTEAD, H. Christopher H. Geothermal Energy: Its Past, Present and Future Contributions to the Enrgy Needs of Man Second. E & F.N. Spon.