BOCKING, Stephen. Ecologists and environmental politics : a history of contemporary ecology. Second edition. Morgantown : West Virginia University Press, 2017. 1 online zdroj (xvi, 271 stran). Dostupné na internetu: <http://search.ebscohost.com/login.aspx?direct=true&db=nlebk&AN=1459994&lang=cs&site=eds-live&ebv=EB&ppid=pp_Cover> ISBN 978-1-943665-66-2.