Davies, P. (1995). Are We Alone: Philosophical Implications of the Discovery of Extraterrestrial Life. Penguin Books.
シカゴスタイル引用形Davies, Paul. Are We Alone: Philosophical Implications of the Discovery of Extraterrestrial Life. London: Penguin Books, 1995.
MLA引用形式Davies, Paul. Are We Alone: Philosophical Implications of the Discovery of Extraterrestrial Life. Penguin Books, 1995.
警告: この引用は必ずしも正確ではありません.