Lua APA (7ú heag.)

Polonsky, A. (2020). Richard Pipes: 11 July 1923-17 May 2018. Polin.

Lua i Stíl Chicago (17ú heag.)

Polonsky, Antony. "Richard Pipes: 11 July 1923-17 May 2018." Polin 2020.

Lua MLA (8ú heag.)

Polonsky, Antony. "Richard Pipes: 11 July 1923-17 May 2018." Polin, 2020.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.