Simmons, I.G. The ecology of natural resources - Edward Arnold Ltd London 1974 - vii,424 - Natural resources Environmental revolution Ecosystem ISBN: 0 7131 5734 8 = Simmons, I.G. Standard No.: M Standard Tech. Report. No.: LCCN: B Nat. Bib. No.: 1621 Nat. Bib. Agency Control No.: 577.4 SIM Subjects--Topical Terms: Environmental Sciences Universal Decimal Class. No.: 577.4