^ "DEFCON DEFense CONdition". fas.org. Archived from the original on June 17, 2015. Retrieved June 17, 2015.

^ Nixon 1978, pp. 938–940.

^ Black, pp. 923–928.

^ Ambrose 1991, p. 311.

^ Tyler, Patrick (2010), p. 161

^ Black, pp. 951–952, 959.

^ Jump up to: a b Ambrose 1989, pp. 225–226.

^ Jump up to: a b Ambrose 1989, pp. 431–432.

^ Jump up to: a b c Bowles, Nigel. "Economic Policy" in Small, pp. 235–251.

^ Jump up to: a b Oatley, Thomas (2019). International Political Economy: Sixth Edition. Routledge. pp. 351–352. ISBN 978-1-351-03464-7.

^ Gowa, Joanne (1983). Closing the Gold Window. Cornell University Press. Cornell University Press. ISBN 978-0-8014-1622-4. JSTOR 10.7591/j.ctvr7f40n.{{cite book}}:  CS1 maint: url-status (link)

^ Jump up to: a b Aitken, pp. 399–400.

^ Jump up to: a b c d Hetzel, p. 92.

^ Aitken, p. 395.

^ USPS, Periodicals postage.

^ Jump up to: a b Aitken, pp. 397–398.

^ Jump up to: a b c Rinde, Meir (2017). "Richard Nixon and the Rise of American Environmentalism". Distillations. Vol. 3, no. 1. pp. 16–29. Archived from the original on April 5, 2018. Retrieved April 4, 2018.

^ Aitken, p. 396.

