Richey, M. (2015). Alternative propulsion system and fuels for aviation. https://oaks.kent.edu/node/5184
Richey, Miguel. 2015. “Alternative Propulsion System and Fuels for Aviation”. https://oaks.kent.edu/node/5184.
Richey, M. Alternative Propulsion System and Fuels for Aviation. 11 Mar. 2015, https://oaks.kent.edu/node/5184.