PPreliminary studies in Chinese alchemyPreliminary studies in Chinese alchemyde Ssǔ-miao Sun, Nathan SivinEdiciones (1)Preliminary studies in Chinese alchemy (1966)inglésMás obras de Ssǔ-miao SunYYin hai ching weiYin hai ching wei1974QQian jin bao yaoQian jin bao yao1884千千金月令千金月令