Spencer, H. (1903). Education: Intellectual, moral, and physical. London: Watts & CO.
शिकागो स्टाइल उद्धरणSpencer, Herbert. Education: Intellectual, Moral, and Physical. London: Watts & CO, 1903.
एमएलए उद्धरणSpencer, Herbert. Education: Intellectual, Moral, and Physical. London: Watts & CO, 1903.
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