Window insulation
Subtitle: how to sort through the options
By: Department of Natural Resources & Conservation, Energy Division
Contributors: United States. Department of Energy; Montana. Energy Division
Publisher: The Division
Published: 1985
Place of publication: Helena, Mont. (Capitol Station, Helena 59620)
Language: eng
Number of pages: 36
Subjects: Insulation (Heat); Energy conservation; Windows; Dwellings; Thermal properties
Notes: "Originally prepared in March 1984 by the National Center for Appropriate Technology"--Verso front cover.

"January 1985"--T.p. verso.

Cover title.

Bibliography: p. 31.

Reprint. Originally published: Washington, D.C. : U.S. Dept. of Energy, 1984.