TY  - BOOK
ED  - United Nations Conference on Trade and Development
TI  - A manual for the prepares and users of Eco-efficiency indicators: Version 1.1 
SN  - 9211126207
PY  - 2004///
CY  - New York
PB  - United Nations
KW  - Foreign trade
N1  - UNCTAD/ITE/IPC/2003/7; United Nations Publication Sales No. E.04.II.D.13
ER  -