- http://dozenberg.com/ - Family website.
- NameBase, DOZENBERG NICHOLAS
- DocumentsTalk.com, Dozenberg, Nicholas (1882-1954)
- Full text of "Hearings regarding Communist Espionage : hearings before the Committee on Un-American Activities, House of Representatives, Eighty-first Congress, first and second sessions", Internet Archive.
- Ted Morgan, A Covert Life - Jay Lovestone: Communist, Anti-Communist and Spymaster, Random House, 1999, p.101.