Schoer, K., Deggau, M., & Seibel, S. (2003). Development of built-up and traffic area in Germany 1993 to 2001. Statistisches Bundesamt.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSchoer, Karl, Michael Deggau, और Steffen Seibel. Development of Built-up and Traffic Area in Germany 1993 to 2001. Wiesbaden: Statistisches Bundesamt, 2003.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSchoer, Karl, et al. Development of Built-up and Traffic Area in Germany 1993 to 2001. Statistisches Bundesamt, 2003.
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