Heywood, John B. Internal Combustion Engine Fundamentals. McGraw-Hill series in mechanical engineering. [New York, N.Y.?]: McGraw-Hill Education, 1988. Print.
Hoag, Kevin L., SpringerLink (Online service), and Society of Automotive Engineers. Vehicular Engine Design. Powertrain. Wien: Springer, 2006. Web. <https://ezproxy.lib.gla.ac.uk/login?url=https://dx.doi.org/10.1007/3-211-37762-X>.
Pulkrabek, Willard W. Engineering Fundamentals of the Internal Combustion Engine. 2nd ed., International ed. Upper Saddle River, N.J.: Pearson Education International, 2004. Print.