Product Code Database
References
^ Steven Dick (2012). Life on Other Worlds: The 20th-Century Extraterrestrial Life Debate, Cambridge University Press. ISBN 9780521799126 (revised Apr 2012)^ Steven Dick (2012). Life on Other Worlds: The 20th-Century Extraterrestrial Life Debate, Cambridge University Press. ISBN 9780521799126 (revised Apr 2012)^ Steven J. DickLife on Other Worlds : The 20th-Century Extraterrestrial Life Debate by Steven J. Dick (2001, Paperback, Reprint) ISBN 9780521799126 (revised Feb 2015)^ (2015). Life on Other Worlds: The 20th-Century Extraterrestrial Life Debate BiggerBooks. ISBN 9780521799126 (revised Feb 2024)
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