TY  - RPRT
TI  - Distribution of mail by destination at the San Francisco, Los Angeles, and Baltimore post offices 
AU  - Newman, Arthur E
PY  - 1958
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 5785
DO  - 10.6028/NBS.RPT.5785
ER  -