Nixon himself later wrote, "[W]e decided to link progress in such areas of Soviet concern as strategic arms limitation and increased trade with progress in areas that were important to us—Vietnam, the Mideast, and Berlin. This concept became known as linkage."Richard Nixon (1978). RN: The Memoirs of Richard Nixon. p. 346. ISBN 978-1-4767-3183-4.

^ Gaddis, pp. 294, 299.

^ Nixon 1985, pp. 105–106.

^ Smith, Hedrick (June 29, 1974). "OCCIDENTAL SIGNS DEAL WITH SOVIET". The New York Times. ISSN 0362-4331. Retrieved December 6, 2021.

^ "THE RIDDLE OF ARMAND HAMMER". The New York Times. November 29, 1981. ISSN 0362-4331. Retrieved December 6, 2021.

^ Jump up to: a b Rich, Spencer (October 4, 1979). "Soviets Dumping Ammonia, ITC Says". Washington Post. ISSN 0190-8286. Retrieved December 7, 2021.

^ "NIXON IN APPEAL ON SOVIET TRADE". The New York Times. October 5, 1973. ISSN 0362-4331. Retrieved December 7, 2021.

^ Herring, George C. (2008). From Colony to Superpower; U.S. Foreign Relations Since 1776. Oxford University Press. p. 804. ISBN 978-0-19-507822-0.

^ Jump up to: a b c d Black, p. 963.

^ Jump up to: a b c Hanhimäki, Jussi M. "Foreign Policy Overview" in Small, pp. 345–361.

