(1990). Berlin Document: Divided from 1945 until the 3rd of October 1990 [Elektron. Medium].
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBerlin Document: Divided from 1945 Until the 3rd of October 1990 [Elektron. Medium]. Berlin, 1990.
एमएलए (8वां संस्करण) प्रशस्ति पत्रBerlin Document: Divided from 1945 Until the 3rd of October 1990 [Elektron. Medium]. 1990.
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