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WikiPedia: Surveyor 7 http://www.boeing.com/defense-space/space/bss/fact... http://www.w7ftt.net/laser2.html http://www.planetary.org/multimedia/space-images/e... https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.... https://archive.org/details/surveyorprogramr00unit https://web.archive.org/web/20100207072958/http://...