Sjöberg, R. (1994). Bedrock caves and fractured rock surfaces in Sweden: Occurence and origin. Paleogeophysics & Geodynamics, Stockholm University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSjöberg, Rabbe. Bedrock Caves and Fractured Rock Surfaces in Sweden: Occurence and Origin. Stockholm, Sweden: Paleogeophysics & Geodynamics, Stockholm University, 1994.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSjöberg, Rabbe. Bedrock Caves and Fractured Rock Surfaces in Sweden: Occurence and Origin. Paleogeophysics & Geodynamics, Stockholm University, 1994.
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