Welsh, C. (1974). Preaching in a new key: Studies in the psychology of thinking and listening. United Church Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रWelsh, Clement. Preaching in a New Key: Studies in the Psychology of Thinking and Listening. Philadelphia: United Church Press, 1974.
एमएलए (8वां संस्करण) प्रशस्ति पत्रWelsh, Clement. Preaching in a New Key: Studies in the Psychology of Thinking and Listening. United Church Press, 1974.
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