Bonatti, W., & Edwards, L. F. (1979). On the heights. Diadem ; [Distributed by] Cordee Publishing.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBonatti, Walter, और Lovett Fielding Edwards. On the Heights. London : Leicester (249 Knighton Church Rd, Leicester): Diadem ; [Distributed by] Cordee Publishing, 1979.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBonatti, Walter, और Lovett Fielding Edwards. On the Heights. Diadem ; [Distributed by] Cordee Publishing, 1979.
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