Patchen, P. (2016). Self Healing Concrete as a Sustainable Alternative to Concrete. https://oaks.kent.edu/node/5333
Patchen, Patrick. 2016. “Self Healing Concrete As a Sustainable Alternative to Concrete”. https://oaks.kent.edu/node/5333.
Patchen, P. Self Healing Concrete As a Sustainable Alternative to Concrete. 15 Mar. 2016, https://oaks.kent.edu/node/5333.