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Bá̆c-kỳ hà-đê sự-tích

Ngọc Xuyè̂n Hà

出版	Bộ quó̂c gia giáo dục, 1963
URL	http://books.google.com.hk/books?id=U1Jp48Oj_nwC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋

Methods of generations of Vietnamese kingdoms in controlling floods in Red River areas.