Conkin, P. (2007). The state of the earth: Environmental challenges on the road to 2100. Universities Press.
Цитирование в стиле Чикаго (17-е изд.)Conkin, Paul. The State of the Earth: Environmental Challenges on the Road to 2100. Hyderabad: Universities Press, 2007.
Цитирование MLA (9-е изд.)Conkin, Paul. The State of the Earth: Environmental Challenges on the Road to 2100. Universities Press, 2007.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.