Cooper, R. N. (1994). Environment and resource policies for the world economy. Brookings Institution.
Cita Chicago (17th ed.)Cooper, Richard N. Environment and Resource Policies for the World Economy. Washington, D.C.: Brookings Institution, 1994.
Cita MLA (9th ed.)Cooper, Richard N. Environment and Resource Policies for the World Economy. Brookings Institution, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.