Typical R values.

Bibliographic Details

Corporate Author:	University of Illinois at Urbana-Champaign. Cooperative Extension Service
Format:	Microform Book
Language:	English
Published:	[Urbana] : Cooperative Extension Service, University of Illinois, [1980?]
Series:	Fact sheet (University of Illinois at Urbana-Champaign. Cooperative Extension Service) ; no. 2. Energy and agriculture ; CNV 415.
Subjects:	Insulating materials.