Enlace original:
https://wedocs.unep.org//handle/20.500.11822/29844
United Nations Environment Programme
,
[1991 UNEP Flexible and Rigid Foams Technical Options Report: Pursuant to Article (6)of the Montreal Protocol on Substances that Deplete the Ozone Layer under the Auspices of the United Nations Environment Programme - Final]
,
1991 UNEP Flexible and Rigid Foams Technical Options Report: Pursuant to Article (6)of the Montreal Protocol on Substances that Deplete the Ozone Layer under the Auspices of the United Nations Environment Programme - Final