Eaton, S., Piper, P., & Campbell, V. F. (1979). The Roosevelt Bears: Their travels and adventures / by Seymour Eaton (Paul Piper), illustrated by V. Floyd Campbell. Dover Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEaton, Seymour, Paul Piper, और V Floyd Campbell. The Roosevelt Bears: Their Travels and Adventures / by Seymour Eaton (Paul Piper), Illustrated by V. Floyd Campbell. New York: Dover Publications, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रEaton, Seymour, et al. The Roosevelt Bears: Their Travels and Adventures / by Seymour Eaton (Paul Piper), Illustrated by V. Floyd Campbell. Dover Publications, 1979.
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