Zhongguo ke xue yuan. Zhonghua di li zhi bian ji bu. (1957). Hua bei qu zi ran di li zi liao. Center for Chinese Research Materials, Association of Research Libraries.
Citace podle Chicago (17th ed.)Zhongguo ke xue yuan. Zhonghua di li zhi bian ji bu. Hua Bei Qu Zi Ran Di Li Zi Liao. [Washington, D.C.: Center for Chinese Research Materials, Association of Research Libraries, 1957.
Citace podle MLA (8th ed.)Zhongguo ke xue yuan. Zhonghua di li zhi bian ji bu. Hua Bei Qu Zi Ran Di Li Zi Liao. Center for Chinese Research Materials, Association of Research Libraries, 1957.
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