Παραπομπή σε μορφή APA (7η εκδ.)

(1993). The earth as transformed by human action: Global and regional changes in the biosphere over the past 300 years. Cambridge University.

Παραπομπή σε μορφή Chicago (17η εκδ.)

The Earth as Transformed by Human Action: Global and Regional Changes in the Biosphere over the Past 300 Years. Cambridge: Cambridge University, 1993.

Παραπομπή σε μορφή MLA (9th εκδ.)

The Earth as Transformed by Human Action: Global and Regional Changes in the Biosphere over the Past 300 Years. Cambridge University, 1993.