Ranger 4 (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ranger 4" in English language version.

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doi.org

NASA, Goddard Space Flight Center. "Experiments on Ranger 4". NSSDC Master Catalog. Retrieved December 3, 2022.
"National Space Science Data Center - Ranger 4". National Air and Space Administration. Retrieved 19 June 2012.

"Ranger 4 crashes on Moon". Lewiston Morning Tribune. (Idaho). Associated Press. April 27, 1962. p. 1.
"Ranger-4 hits moon in new space triumph". Bend Bulletin. (Oregon). UPI. April 26, 1962. p. 1.
"'Brainless' Ranger tumbles into space". Lawrence Daily Journal-World. (Kansas). Associated Press. April 24, 1962. p. 1.
"Ranger 4 shot starts 60-hr trip". Bend Bulletin. (Oregon). UPI. April 23, 1962. p. 1.