Poling, K. (2020). Germany's Urban Frontiers: Nature and History on the Edge of the Nineteenth-Century City. University of Pittsburgh Press.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিPoling, Kristin. Germany's Urban Frontiers: Nature and History on the Edge of the Nineteenth-Century City. Pittsburgh: University of Pittsburgh Press, 2020.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিPoling, Kristin. Germany's Urban Frontiers: Nature and History on the Edge of the Nineteenth-Century City. University of Pittsburgh Press, 2020.
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