Boardman, P. (1982). Sacred summits: A climber`s year. Hodder and Stoughton.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBoardman, Peter. Sacred Summits: A Climber`s Year. London: Hodder and Stoughton, 1982.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBoardman, Peter. Sacred Summits: A Climber`s Year. Hodder and Stoughton, 1982.
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