@misc{1173561,
  author = {Normal L Knauss},
  title = {Letter Circular 374::zoned municipalities in the United States},
  year = {1933},
  month = {1933-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.LCIRC.374},
  language = {en},
}