九还七返龙虎金丹析理真诀
程昭
2 chapters·3,495 characters·Classical Chinese · Public Domain
九还七返龙虎金丹析理真诀。题程昭撰，当出於宋代。一卷。底本出处：《正统道藏》洞真部方法类。
Chapters (2)
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