BILLARD JR, Robert D. Operation Cyclone: How the United States Defeated the Soviet Union. URJ-UCCS: Undergraduate Research Journal at UCCS, [S. l.], v. 3, n. 2, p. 25–41, 2010. Disponível em: https://urj.uccs.edu/index.php/urj/article/view/103. Acesso em: 11 may. 2024.