Yan, Q. (1943). Nanyang jing ji di li =: Economic geography of southeastern Asia (3 ban.). Zheng zhong shu ju.
Chicagoスタイル(17版)引用形式Yan, Qingping. Nanyang Jing Ji Di Li =: Economic Geography of Southeastern Asia. 3 ban. [Chongqing]: Zheng zhong shu ju, 1943.
MLA(8版)引用形式Yan, Qingping. Nanyang Jing Ji Di Li =: Economic Geography of Southeastern Asia. 3 ban. Zheng zhong shu ju, 1943.
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