Perlin, F. (1994). Unbroken landscape: Commodity, category, sign and identity; their production as myth and knowledge from 1500. Variorum.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPerlin, Frank. Unbroken Landscape: Commodity, Category, Sign and Identity; Their Production as Myth and Knowledge from 1500. Variorum, 1994.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিPerlin, Frank. Unbroken Landscape: Commodity, Category, Sign and Identity; Their Production as Myth and Knowledge from 1500. Variorum, 1994.
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