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1प्रकाशित 1980विषय “...Royal Geographical Society (Great Britain)...”
पुस्तक -
2द्वारा Mill, Hugh Robert, 1861-1950विषय “...Royal Geographical Society (Great Britain) History....”
प्रकाशित 1930
पुस्तक -
3प्रकाशित 1831विषय “...Royal Geographical Society (Great Britain)...”
पत्रिका -
4