APA (7th ed.) Citation
Davidson, E. (2014). Manure happens: Altering the global nitrogen cycle by feeding about seven billion carnivorous humans. University of Maryland.
Chicago Style (17th ed.) Citation
Davidson, E.A. Manure Happens: Altering the Global Nitrogen Cycle by Feeding About Seven Billion Carnivorous Humans. University of Maryland, 2014.
MLA (9th ed.) Citation
Davidson, E.A. Manure Happens: Altering the Global Nitrogen Cycle by Feeding About Seven Billion Carnivorous Humans. University of Maryland, 2014.
Warning: These citations may not always be 100% accurate.