Guidelines for saving energy in existing buildings
Subtitle: engineers, architects, and operators manual (ECM 2)
Contributors: United States. Office of Energy Conservation and Environment
Series: Conservation paper -- no. 21; Conservation paper (United States. Office of Energy Conservation and Environment) -- no. 21
Publisher: Federal Energy Administration, Office of Energy Conservation and Environment
Published: 1975
Place of publication: [Washington]
Language: eng
Number of pages: 448
Subjects: Buildings -- Environmental engineering; Heating