Perlin, F. (1994). Unbroken landscape: Commodity, category, sign and identity; their production as myth and knowledge from 1500. Variorum.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPerlin, Frank. Unbroken Landscape: Commodity, Category, Sign and Identity; Their Production as Myth and Knowledge from 1500. Variorum, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPerlin, Frank. Unbroken Landscape: Commodity, Category, Sign and Identity; Their Production as Myth and Knowledge from 1500. Variorum, 1994.
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