TY  - RPRT
TI  - Letter Circular 378d: zoned municipalities -- by population groups; municipalities of more than 10,000 and less than 20,000 population
PY  - 1933
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 378d
DO  - 10.6028/NBS.LCIRC.378d
ER  -