APA استشهاد

Lomborg, B. . .. (2005). Skeptical environmentalist: Measuring the real state of the world. Cambridge University Press.

استشهاد بنمط شيكاغو

Lomborg, Bjorn. Skeptical Environmentalist: Measuring the Real State of the World. Cambridge: Cambridge University Press, 2005.

MLA استشهاد

Lomborg, Bjorn. Skeptical Environmentalist: Measuring the Real State of the World. Cambridge University Press, 2005.