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Feng, Yongqian.

Bei fang shi di yan jiu / Feng Yongqian zhu. - Di 1 ban. - Zhengzhou Shi : Zhongzhou gu ji chu ban she, 1994. - 4, 3, 420 p. : ill., maps ; 27 cm.

Includes bibliographical references.

ISBN: 7534813638

Subjects--Geographic Terms:
China--Historical geography.

LC Class. No.: CHI00908