Douglas, R. (1976). Land, people and politics: A history of the land question in the United Kingdom, 1878-1952. Allison Busby.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रDouglas, Roy. Land, People and Politics: A History of the Land Question in the United Kingdom, 1878-1952. Allison Busby, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रDouglas, Roy. Land, People and Politics: A History of the Land Question in the United Kingdom, 1878-1952. Allison Busby, 1976.
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