Research article: United States nuclear forces, 2020 (text-to-speech voice available) User AnonymousEighteen, in the NuclearEmergency subreddit, 13 Dec 2021
Research article: United States nuclear forces, 2020 (text-to-speech voice available) User AutoModerator, in the NuclearWarfare subreddit, 13 Dec 2021
United States nuclear forces, 2020 User Cultural_Attache, in the IntelligenceFiles - subreddit for documents and files about intelligence, espionage and security. subreddit, 26 Mar 2020