Guan, X. (1981). Ke xue xue gang yao: Li lun ke xue xue ji chu. Tianjin ke xue ji shu chu ban she.
Chicago Style (17th ed.) CitationGuan, Xipu. Ke Xue Xue Gang Yao: Li Lun Ke Xue Xue Ji Chu. Tianjin: Tianjin ke xue ji shu chu ban she, 1981.
MLA (9th ed.) CitationGuan, Xipu. Ke Xue Xue Gang Yao: Li Lun Ke Xue Xue Ji Chu. Tianjin ke xue ji shu chu ban she, 1981.
Warning: These citations may not always be 100% accurate.