Gaya APA
A manual for the preparers and users of eco-efficiency indicators version 1.1. (2004).
New York:
United Nations.
Gaya Chicago
A manual for the preparers and users of eco-efficiency indicators version 1.1.
.
New York:
United Nations,
2004.
Text.
Gaya MLA
A manual for the preparers and users of eco-efficiency indicators version 1.1.
.
New York:
United Nations,
2004.
Text.
Gaya Turabian
A manual for the preparers and users of eco-efficiency indicators version 1.1.
New York:
United Nations,
2004.
Print.