Ross, A. S. C., Mitford, N., Waugh, E., Sykes, C., & Betjeman, J. (1959). Noblesse oblige: An enquiry into the identifiable characteristics of the english aristocracy. Penguin Books.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रRoss, Alan S. C., Nancy Mitford, Evelyn Waugh, Christopher Sykes, और John Betjeman. Noblesse Oblige: An Enquiry into the Identifiable Characteristics of the English Aristocracy. Harmondsworth: Penguin Books, 1959.
एमएलए (9वां संस्करण) प्रशस्ति पत्रRoss, Alan S. C., et al. Noblesse Oblige: An Enquiry into the Identifiable Characteristics of the English Aristocracy. Penguin Books, 1959.
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