Shapiro, R. (1999). Planetary dreams: The quest to discover life beyond earth. John Wiley.
シカゴスタイル引用形Shapiro, Robert. Planetary Dreams: The Quest to Discover Life Beyond Earth. New York: John Wiley, 1999.
MLA引用形式Shapiro, Robert. Planetary Dreams: The Quest to Discover Life Beyond Earth. John Wiley, 1999.
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