Bookchin, M. (1993). What is social ecology? Englewood Cliffs (New Jersey): Zimmerman, E.M.
Chicago-referens (17:e uppl.)Bookchin, Murray. What Is Social Ecology? Englewood Cliffs (New Jersey): Zimmerman, E.M, 1993.
MLA-referens (8:e uppl.)Bookchin, Murray. What Is Social Ecology? Englewood Cliffs (New Jersey): Zimmerman, E.M, 1993.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.