TY  - RPRT
TI  - Preliminary guidelines for condition assessment of buildings being considered for solar retrofit 
AU  - Lerchen, Frank H
AU  - Pielert, James H
AU  - Chen, Phillip T
PY  - 1981
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 81-2289
DO  - 10.6028/NBS.IR.81-2289
ER  -