他所发明的分类法即是哈佛-燕京分类法。
The system devised by him was known as Harvard-Yenching Classification System.
这个分类法刚开始是为了分类于1927年建立的哈佛燕京学社图书馆的中文资料而创立的。
The system was primarily created for the classification of Chinese language materials in the Harvard-Yenching Institute Library which was founded in 1927.
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