Bookchin, M. (1993). What is social ecology? Englewood Cliffs (New Jersey): Zimmerman, E.M.
Citazione stile Chigago Style (17a edizione)Bookchin, Murray. What Is Social Ecology? Englewood Cliffs (New Jersey): Zimmerman, E.M, 1993.
Citatione MLA (8a ed.)Bookchin, Murray. What Is Social Ecology? Englewood Cliffs (New Jersey): Zimmerman, E.M, 1993.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.