APA (7th ed.) Citation

Sage Publications & CQ Press. (2020). Washington information directory 2020-2021. CQ Press.

Chicago Style (17th ed.) Citation

Sage Publications and CQ Press. Washington Information Directory 2020-2021. Washington D.C.: CQ Press, 2020.

MLA (9th ed.) Citation

Sage Publications and CQ Press. Washington Information Directory 2020-2021. CQ Press, 2020.