简要介绍刘国钧先生“图书馆学五要素”的提出过程。
The advancing of "Five Elements of Library Science" by Liu Guojun was a process.
本周五周六，我们六年级进行了一次综合实践活动——去刘国钧职业技校学习。
Week 5 Saturday, we conducted a comprehensive sixth grade practice activities - to Liu Guojun vocational technical school to learn.
本周五周六，我们六年级进行了一次综合实践活动——去刘国钧职业技校学习。
Week 5 Saturday, we conducted a comprehensive sixth grade practice activities - to Liu Guojun vocational technical school to learn.
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