Beattie, J. C. (1909). Report of a magnetic survey of South Africa. Pub. for the Royal society and sold by the Cambridge university press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBeattie, John Carruthers. Report of a Magnetic Survey of South Africa. London: Pub. for the Royal society and sold by the Cambridge university press, 1909.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBeattie, John Carruthers. Report of a Magnetic Survey of South Africa. Pub. for the Royal society and sold by the Cambridge university press, 1909.
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