I havnen't been able to find any speeches or statements from Soviets on the Space Race. Were they not very public about their plans and progress? Why/Why not?
A book written by Dr. Asif Siddiqi of Fordham University was published by NASA in 2000. Titled "Challenge to Apollo: The Soviet Union and the Space Race, 1945-1974" It's available as a two-part PDF, and it includes extensive bibilographic references:
Dr. Siddiqi also wrote a book called "The Red Rockets' Glare: Spaceflight and the Russian Imagination, 1857–1957. Haven't read it yet, but it's on my to-read list. The good professor also has a number of articles about aspects of the Soviet space program.
When I was a boy, I loved the book "Red Star in Orbit" by James Oberg, but it hasn't been updated since the 1980s, though there was a multi-part BBC series in the early '90s that followed the book.
In addition, there are several documents available from the National Security Archive at George Washington University, chronicled in a 2015 article.
Another question: What was the American goverment/NASA opinion and view on the Soviet space race?