Walter Sullivan (journalist) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Walter Sullivan (journalist)" in English language version.

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agu.org

Hartmann, W. K. (10 May 1974). "Mars and the Mind of Man. A panel discussion, Pasadena, Calif., Nov. 1971. Ray Bradbury, Arthur C. Clarke, Bruce Murray, Carl Sagan, and Walter Sullivan. Harper and Row, New York, 1973. xiv, 144 pp., illus. $7.95". Science. 184 (4137): 663–664. doi:10.1126/science.184.4137.663.
Gingerich, Owen (February 1975). "Mars and the mind of man". Icarus. 24 (2): 269–270. doi:10.1016/0019-1035(75)90104-9.