TY  - BOOK
AU  - The National Associtation of home builders
TI  - NAHB Thermal preformance guidelines : : for one and two family dwel lings/ 
U1  - 333.7916NAH 
PY  - 0000///1 977
CY  - Washington D.C. : 
PB  - The National Association of home builders, 
KW  - Energy conversion
N1  -  Includes bibliographies
ER  -