Citazione Stile APA (7a Edizione)
Uekötter, F., & Engels, J. I. (2010). The turning points of environmental history. University of Pittsburgh Press.
Citazione stile Chigago Style (17a edizione)
Uekötter, Frank, e Jens Ivo Engels. The Turning Points of Environmental History. Pittsburgh, Pennsylvania: University of Pittsburgh Press, 2010.
Citatione MLA (9a ed.)
Uekötter, Frank, e Jens Ivo Engels. The Turning Points of Environmental History. University of Pittsburgh Press, 2010.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.