To cite package ‘tidyqwi’ in publications use:

  DeWitt et al., (2019). tidyqwi: A Tidy Approach to Accessing The US
  Census Bureau's Quarterly Workforce Indicators. Journal of Open
  Source Software, 4(38), 1462, https://doi.org/10.21105/joss.01462

A BibTeX entry for LaTeX users is

  @Article{,
    title = {tidyqwi: A Tidy Approach to Accessing The US Census Bureau’s Quarterly Workforce Indicators},
    author = {Michael E. DeWitt and Mona Ahmadiani and Adam S. Hyde},
    journal = {Journal of Open Source Software},
    year = {2019},
    volume = {4},
    number = {38},
    pages = {1462},
    url = {https://joss.theoj.org/papers/10.21105/joss.01462},
  }