TY - GEN AU - Ruegg, Rosalie T AU - Petersen, Stephen R AU - Marshall, Harold E C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1980-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.80-2040 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1980 TI - Recommended practice for measuring life-cycle costs of buildings and building systems: ER -