Heimildaskrá

Airplane. (án dags.). Sótt maí 2017 frá Wikipedia: https://en.wikipedia.org/wiki/Airplane

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Briggs, J. (1.. 05 2008). How cruise ships work. Sótt maí 2017 frá How stuff works: http://adventure.howstuffworks.com/cruise-ship3.htm

 

Cromer, G. C. (án dags.). Automobile. Sótt maí 2017 frá Britannica School: http://school.eb.com/levels/high/article/automobile/110735

 

G., V. (2010). What kind of fuel do airplanes run on? Sótt maí 2017 frá Yahoo! Answers: https://answers.yahoo.com/question/index?qid=20101211103254AANOd1R

 

History of the automobile. (án dags.). Sótt maí 2017 frá Wikipedia: https://en.wikipedia.org/wiki/History_of_the_automobile

 

How does an engine work? (2015). Sótt maí 2017 frá Wonderopolis: http://wonderopolis.org/wonder/how-does-an-engine-work

 

How much fuel does an international plane use for a trip? (1. Apríl 2000). Sótt maí 2017 frá How stuff works: http://science.howstuffworks.com/transport/flight/modern/question192.htm

 

Jet Fuel. (án dags.). Sótt maí 2017 frá Wikipedia: https://en.wikipedia.org/wiki/Jet_fuel