APA (7th ed.) Citation

Conkin, P. (2007). The state of the earth: Environmental challenges on the road to 2100. Universities Press.

Chicago Style (17th ed.) Citation

Conkin, Paul. The State of the Earth: Environmental Challenges on the Road to 2100. Hyderabad: Universities Press, 2007.

MLA (9th ed.) Citation

Conkin, Paul. The State of the Earth: Environmental Challenges on the Road to 2100. Universities Press, 2007.