Bibliography - Engineering bibliographies - in Harvard style

In-text: (ramjet engine, 2015)

Your Bibliography: Aardvark.co.nz. 2015. ramjet engine. [online] Available at: <http://aardvark.co.nz/pjet/ramjets.htm> [Accessed 3 February 2015].

In-text: (The Ramjet / Scramjet Engine, 2015)

Your Bibliography: Aviation-history.com. 2015. The Ramjet / Scramjet Engine. [online] Available at: <http://www.aviation-history.com/engines/ramjet.htm> [Accessed 5 February 2015].

In-text: (Gerbis, 2015)

Your Bibliography: Gerbis, N., 2015. How Ramjets Work - HowStuffWorks. [online] HowStuffWorks. Available at: <http://science.howstuffworks.com/transport/engines-equipment/ramjet.htm> [Accessed 3 February 2015].

In-text: (SCRAMJETS, 2015)

Your Bibliography: Orbitalvector.com. 2015. SCRAMJETS. [online] Available at: <http://orbitalvector.com/Orbital%20Travel/Scramjets/Scramjets.htm> [Accessed 5 February 2015].