Brown, L. R. (2003). The earth policy reader. Orient Longman Ltd.
Chicago Edition CitationBrown, Lester R. The Earth Policy Reader. Hyderabad: Orient Longman Ltd, 2003.
Cita MLABrown, Lester R. The Earth Policy Reader. Orient Longman Ltd, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.