TY  - BOOK
ED  - United Nations Development Programme.
TI  - 1991 UNDP annual report: the challenge of the environment
PY  - 1991///
CY  - New York
PB  - United Nations Development Programme
KW  - Economic development
KW  - Environmental aspects
KW  - Environmental policy
KW  - Sustainable development
N1  - Includes bibliographical references and index
ER  -