Great Britain. Ordnance Survey. (1964). Field archaeology (Fourth edition.). H.M. Stationery Off.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रGreat Britain. Ordnance Survey. Field Archaeology. Fourth edition. London: H.M. Stationery Off, 1964.
एमएलए (9वां संस्करण) प्रशस्ति पत्रGreat Britain. Ordnance Survey. Field Archaeology. Fourth edition. H.M. Stationery Off, 1964.
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