APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

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

MLA način citiranja (9. izdanje)

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