TY - GEN AU - Hill, J E AU - Didion, D A C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1973-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.74-460 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1973 TI - Comparison of power output and exhaust pollutants of two postal service vehicles operated on three hydrocarbon fuels: ER -