Putting a value on nature 's ' free ' services Author Abramovitz J. Journal/Series World Watch | Vol. 11(1); 10 - 19; 10 p. Date 1998 Source IUCN (ID: ANA-062704) Publisher | Place of publication Worldwatch Institute | Washington, DC, USA Document type Article in periodical Language English Field of application International Subject Wild species & ecosystems, Forestry Keyword Forest management/forest conservation Resource/damage valuation