Ecuador - Convention on Wetlands of International Importance especially as Waterfowl Habitat (Ramsar 1971) from 1990
UNESCO
Description of wetlands; maps
1994-1995
https://atom.archives.unesco.org/ecuador-convention-on-wetlands-of-international-importance-especially-as-waterfowl-habitat-ramsar-1971-from-1990
398/62
Ecuador