Spalding, J. L. (1901). Progress in education: Address delivered before the National Education Association, July 9, 1901, Detroit, Michigan. Ave Maria.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSpalding, John Lancaster. Progress in Education: Address Delivered Before the National Education Association, July 9, 1901, Detroit, Michigan. Notre Dame, Ind.: Ave Maria, 1901.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSpalding, John Lancaster. Progress in Education: Address Delivered Before the National Education Association, July 9, 1901, Detroit, Michigan. Ave Maria, 1901.
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