Steadman, P. Energy,environment and building - Cambridge University Press Cambridge 1975 - ix,287p. - Energy conservation methods Solar energy Wind power Hydro power Methane gas Solar heating ISBN: 0 521 20694 4 Nat. Bib. No.: 2223 Nat. Bib. Agency Control No.: 620.91 STE Subjects--Topical Terms: Energy Universal Decimal Class. No.: 620.91