2Anna Henriksen. Voluntary Environmental Labelling and World Trade Organization. International Trade, Environment and Development with Christian Friis Bach at Institute of Economics Copenhagen University, 1998.10.
3Janet Chakarian, Eco- labelling and GATT, Eco- labelling and InTernational Trade, Edited by Simonetta Zarrilli, Veena Jha and Rene Vossenaar ,Foreword by Rubens Ricupero ,Secretary General of UNCTAD, 1997,P263.
4Rene Vossenaar,Eco- labelling and International Trade:The Main Issues,Eco- labelling and International Trade,Edited by Simonetta Zarrilli,Veena Jha and Rene Vossenaar ,Foreword by Rubens Ricupero ,Secretary General of UNCTAD,1997,P22.
5http://www. wto. org
6Anil Markandya, Eco- labelling:An Introduction and Review, Eco- labelling and International Trade,Edited by Simonetta Zarrilli,Veena Jha and Rene Vossenaar ,Foreword by Rubens Ricupero ,Secretary General of UNCTAD,1997,P16.
7See Environmental Review of Trade Agreements at the National Level, Communication from the United States, WT/CTE/W/37,23 July 1996.
8See UNEP News Release.
9See The Relationship between Trade Measures Pursuant to MEAs and the WTO Agreement, Proposal by Japan, WT/CTE/W/31,30May 1996.
5Donna Roberts, Timothy E.Josling, and David Orden "A Framework for Analyzing Technical Trade Barriers in Agricultural Markets "Market andTrade Economics Division, Economics Research Service/USDA Technical Bulletin No.1876
6Jean C. Buzby, "International Trade and Food Safety: Economics Theory and Case Studies"Economics Research Service/USDA2003(11)