TY - RPRT TI - Life-cycle costing : a guide for selecting energy conservation projects for public buildings AU - Ruegg, Rosalie T AU - McConnaughey, John S AU - Sav, G T AU - Hockenbery, Kimberly A PY - 1978 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS BSS 113 DO - 10.6028/NBS.BSS.113 ER -