000 00503nam a2200145 a 4500
005 20220228110612.0
035 _aF8901000707580
084 _aNBS BSS 64 1974
100 _aPetersen, Stephen R.
245 _aRetrofitting existing housing for energy conservation: an e-conomic analysis / Stephen R. Petersen.
260 _aWashington : National Bureau of Standards
300 _a[76] p.
440 _aBuilding science serie; 64 / National Bureau of Standards
690 _aViviendas - Energia - Consumo.
999 _c58165
_d58165