International Drinking Water Supply and Sanitation Decade : press clippings from 2 Earthscan briefing documents.
1981
详细记录
符号***
标题International Drinking Water Supply and Sanitation Decade : press clippings from 2 Earthscan briefing documents.
索书号
UNEP(02)/E22
日期[London] : Earthscan, [Dec. 1981]
描述
[141] p. : ill., maps.