APA (7th ed.) Citation

Filardo, P. M. (2021). Communist History Bibliography 2020: United States & International. American Communist History, 20(3/4), 199. https://doi.org/10.1080/14743892.2021.1932376

Chicago Style (17th ed.) Citation

Filardo, Peter Meyer. "Communist History Bibliography 2020: United States & International." American Communist History 20, no. 3/4 (2021): 199. https://doi.org/10.1080/14743892.2021.1932376.

MLA (9th ed.) Citation

Filardo, Peter Meyer. "Communist History Bibliography 2020: United States & International." American Communist History, vol. 20, no. 3/4, 2021, p. 199, https://doi.org/10.1080/14743892.2021.1932376.