APA (7th ed.) Citation

Graf. (2010). How does a waterfall become electricity? Raintree.

Chicago Style (17th ed.) Citation

Graf. How Does a Waterfall Become Electricity? London: Raintree, 2010.

MLA (8th ed.) Citation

Graf. How Does a Waterfall Become Electricity? Raintree, 2010.

Warning: These citations may not always be 100% accurate.