Sung, Y. f., Sun, E. Z., & Sun, S. (1966). T'ien-kung K'ai-wu ; Chinese technology in the seventeenth century. Pennsylvania State University.
Citace podle Chicago (17th ed.)Sung, Ying-hsing fl., E-tu Zen Sun, a Shiou-chuan Sun. T'ien-kung K'ai-wu ; Chinese Technology in the Seventeenth Century. University Park: Pennsylvania State University, 1966.
Citace podle MLA (9th ed.)Sung, Ying-hsing fl., et al. T'ien-kung K'ai-wu ; Chinese Technology in the Seventeenth Century. Pennsylvania State University, 1966.
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