Goldfarb, T. D. (1991). Taking sides: Clashing views on controversial environmental issues (4th ed.). Dushkin Publishing Group.
Cita Chicago (17th ed.)Goldfarb, Theodore D. Taking Sides: Clashing Views on Controversial Environmental Issues. 4th ed. Guilford: Dushkin Publishing Group, 1991.
Cita MLA (9th ed.)Goldfarb, Theodore D. Taking Sides: Clashing Views on Controversial Environmental Issues. 4th ed. Dushkin Publishing Group, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.