@misc{1198776,
  author = {Brian P Dougherty},
  title = {A proposed methodology for rating air-source heat pumps that heat, cool, and provide domestic water heating:},
  year = {1989},
  month = {1989-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.89-4154},
  language = {en},
}