Auvo Kostiainen: Hall, Gus (1910 - 2000)Kansallisbiografia-verkkojulkaisu (maksullinen). 6.9.2001. Helsinki: Suomalaisen Kirjallisuuden Seura.
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Gus Hall, American Communist Party boss, dies at 90Associated Press. Arkistoitu 14.8.2012. ”Gus Hall, the American Communist Party boss who steadfastly stuck to his beliefs through years in prison and the collapse of communist regimes around the world, has died. He was 90. Mr. Hall died Friday at Lenox Hill Hospital in Manhattan of complications relating to diabetes, Scott Marshall, a Communist Party official, said yesterday.” Viitattu 23.11.2009.
Gus Hall, American Communist Party boss, dies at 90Associated Press. Arkistoitu 14.8.2012. ”Gus Hall, the American Communist Party boss who steadfastly stuck to his beliefs through years in prison and the collapse of communist regimes around the world, has died. He was 90. Mr. Hall died Friday at Lenox Hill Hospital in Manhattan of complications relating to diabetes, Scott Marshall, a Communist Party official, said yesterday.” Viitattu 23.11.2009.