Polonsky, A. (2020). Sir Sigmund Sternberg: 2 June 1921-18 October 2016. Polin.
Chicago-Zitierstil (17. Ausg.)Polonsky, Antony. "Sir Sigmund Sternberg: 2 June 1921-18 October 2016." Polin 2020.
MLA-Zitierstil (8. Ausg.)Polonsky, Antony. "Sir Sigmund Sternberg: 2 June 1921-18 October 2016." Polin, 2020.
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