【摘要】 <正> 本文有两个重要思想来源:第一是由来已久的图书馆系统思想,如早在1929年陶述先提出的图书馆"书籍"、"馆员"、"读者"三要素说;1932年杜定友提出的"书"、"人"、"法"三要素说;1934年刘国钧提出的"图书"、"人员"、"方法"、"设备"四要素说;以及后来提出的图书馆系统说等;第二是传更多还原

【Abstract】 Based on the theories of Tao Shuxian’s "Three Essential Factors"(1929),Du Dingyou’s"Three Essential Factors"(1932), the "Four Essential Factors"(1934) of Liu Guojun and the hbrary systematic theories, the paper, with the combination of the principles and methods of the communication studies, makes a factor decomposition for the library documentary information transfer process and analyses the transfer of factor focal point in the process of libary evolution. Thus it can be seen that the process of library rvolution is at the same time also the process of gradual opening. ill-1, tab.3, ref.26更多还原