Clarke, A. C. (1997). The songs of distant Earth. Oxford: Oxford Univ. Press.
शिकागो स्टाइल उद्धरणClarke, Arthur C. The Songs of Distant Earth. Oxford: Oxford Univ. Press, 1997.
एमएलए उद्धरणClarke, Arthur C. The Songs of Distant Earth. Oxford: Oxford Univ. Press, 1997.
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