TY  - RPRT
TI  - Window design strategies to conserve energy 
AU  - Hastings, S Robert
AU  - Crenshaw, Richard W
PY  - 1977
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS BSS 104
DO  - 10.6028/NBS.BSS.104
ER  -