TY - GEN AU - Lavappa, Priya D AU - Kneifel, Joshua D C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 2019-03-01 05:03:00 DO - https://doi.org/10.6028/NIST.IR.85-3273-34 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 2019 TI - Energy price indices and discount factors for life-cycle cost analysis::2019 annual supplement to NIST handbook 135 ER -