APA (7th ed.) Citation

McMullan, J. T., & Morgan, R. (1981). Heat pumps. A. Hilger.

Chicago Style (17th ed.) Citation

McMullan, J. T., and R. Morgan. Heat Pumps. Bristol: A. Hilger, 1981.

MLA (9th ed.) Citation

McMullan, J. T., and R. Morgan. Heat Pumps. A. Hilger, 1981.