Song, Y., Sun, E. Z., & Sun, S. (1966). Tien-kung kai-wu: Chinese technology in the seventeenth century. Pennsylvania State University.
Chicago Style (17th ed.) CitationSong, Yingxing, E-tu Zen Sun, and Shiou-chuan Sun. Tien-kung Kai-wu: Chinese Technology in the Seventeenth Century. University Park: Pennsylvania State University, 1966.
MLA (9th ed.) CitationSong, Yingxing, et al. Tien-kung Kai-wu: Chinese Technology in the Seventeenth Century. Pennsylvania State University, 1966.
Warning: These citations may not always be 100% accurate.