@article{econhot_econhot-reading-27,
  title = {Analysis of Covariance with Qualitative Data},
  author = {Gary Chamberlain},
  journal = {The Review of Economic Studies},
  year = {1980},
  volume = {47},
  number = {1},
  pages = {225},
  doi = {10.2307/2297110},
  url = {https://doi.org/10.2307/2297110}
}