Potentials and policy implications of energy and material efficiency improvement /
Worrell, Ernst.
United Nations.Department for Policy Coordination and Sustainable Development.
New York : United Nations,
1997.
"April 1997"--Cover.
Commissioned by the Department for Policy Coordination and Sustainable Development.
United Nations publication Sales no. E.97.II.A.3."--p. [104]).
Includes bibliographical references (p. 82-103).
Energy conservation.
Materials management.
Sustainable development.