TY - GEN AU - Severo, Norman C C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1959-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.27 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1959 TI - Distribution of mail by destination at the San Francisco, Los Angeles, and Baltimore Post Offices: ER -