APA (7th ed.) Citation

Elder, J. (1981). Geothermal systems. Academic Press.

Chicago Style (17th ed.) Citation

Elder, John. Geothermal Systems. London: Academic Press, 1981.

MLA (9th ed.) Citation

Elder, John. Geothermal Systems. Academic Press, 1981.

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