April 2019). Apollo 11 CommandandServiceModule (CSM). nssdc.gsfc.nasa.gov. [2019-04-20]. (原始内容存档于10 February 2021). Apollo 11 Lunar Module / EASEP. nssdc
Murray and Cox, Apollo, pp. 16-17. 原文:"deficiencies existed in CommandModule design, workmanship and quality control." [Report of the Apollo 204 Review