Xu, Y. M. (1439). Yu ji wei yi: [50 juan] (Ming Zhengtong ji wei (4 nian) [1439] kan ben.).
Chicago Style (17th ed.) CitationXu, Yongcheng Ming. Yu Ji Wei Yi: [50 Juan]. Ming Zhengtong ji wei (4 nian) [1439] kan ben. 1439.
MLA (9th ed.) CitationXu, Yongcheng Ming. Yu Ji Wei Yi: [50 Juan]. Ming Zhengtong ji wei (4 nian) [1439] kan ben. 1439.
Warning: These citations may not always be 100% accurate.