APA (7th ed.) Citation

Unesco & Armstead, H. C. H. (1973). Geothermal energy: Review of research and development. Unesco.

Chicago Style (17th ed.) Citation

Unesco and H. Christopher H. Armstead. Geothermal Energy: Review of Research and Development. Paris: Unesco, 1973.

MLA (9th ed.) Citation

Unesco and H. Christopher H. Armstead. Geothermal Energy: Review of Research and Development. Unesco, 1973.

Warning: These citations may not always be 100% accurate.