Ecology and environment. 3. Sanitation and housing for industrial workers.
D000383:Agriculture; D002958:City Planning; D003365:Costs and Cost Analysis; D003906:Developing Countries; D006798:Housing; D008906:Mining; D011638:Public Housing; D012424:Rural Population; D012499:Sanitation; D014505:Urban Population; D014507:Urbanization; D014881:Water Supply