Case, C. C. (1985). Talking trees & singing whales. Review and Herald.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रCase, Charles C. Talking Trees & Singing Whales. Hagerstown, MD: Review and Herald, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रCase, Charles C. Talking Trees & Singing Whales. Review and Herald, 1985.
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