APA (7th ed.) Citation

Elwell, D., & Pointon, A. J. (1972). Classical thermodynamics. Penguin books.

Chicago Style (17th ed.) Citation

Elwell, Dennis, and Anthony J. Pointon. Classical Thermodynamics. Harmondsworth, Middlesex: Penguin books, 1972.

MLA (9th ed.) Citation

Elwell, Dennis, and Anthony J. Pointon. Classical Thermodynamics. Penguin books, 1972.