APA (7th ed.) Citation

Leip, D. (2017). 2016 president by county. David Leip.

Chicago Style (17th ed.) Citation

Leip, Dave. 2016 President by County. [Cambridge, Massachusetts]: David Leip, 2017.

MLA (8th ed.) Citation

Leip, Dave. 2016 President by County. David Leip, 2017.