Human settlements the environmental challenge - Macmillan London 1974 - xvi,209 - Human settlements Environmental challenges ISBN: 333 14071 0 = Human settlements Standard No.: M Standard Tech. Report. No.: LCCN: B Nat. Bib. No.: 1523 Nat. Bib. Agency Control No.: 577.4 HUM Subjects--Topical Terms: Environmental Sciences Universal Decimal Class. No.: 577.4