Bliven, B. (1950). Twentieth century unlimited, from the vantage point of the first fifty years. New York: J. B. Lippincott Company.
Παραπομπή Chicago StyleBliven, Bruce. Twentieth Century Unlimited, From the Vantage Point of the First Fifty Years. New York: J. B. Lippincott Company, 1950.
Παραπομπή MLABliven, Bruce. Twentieth Century Unlimited, From the Vantage Point of the First Fifty Years. New York: J. B. Lippincott Company, 1950.
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