APA (7th ed.) Citation

Elder, J. (1981). Geothermal systems. Acad. Pr.

Chicago Style (17th ed.) Citation

Elder, John. Geothermal Systems. London (u.a.): Acad. Pr, 1981.

MLA (9th ed.) Citation

Elder, John. Geothermal Systems. Acad. Pr, 1981.

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