© Courtesy of the C. V. Starr East Asian Library, Columbia University.
Article
推算1934年星期數的方法, Method of calculating the week number of 1934
胡列貞 Hu Liezhen (Author),
© Courtesy of the C. V. Starr East Asian Library, Columbia University.
Article
推算1934年星期數的方法, Method of calculating the week number of 1934
胡列貞 Hu Liezhen (Author),