Roger Penrose. Shadows of the Mind: Search for the Missing Science of Consciousness. London.
शिकागो स्टाइल उद्धरणRoger Penrose. Shadows of the Mind: Search for the Missing Science of Consciousness. London.
एमएलए उद्धरणRoger Penrose. Shadows of the Mind: Search for the Missing Science of Consciousness. London.
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