- Book by category
A

**Book by category**(zh-t|t=類書) is one kind ofreference book inancient China .

*First appeared inCao Wei for the emperorCao Pi .

*DuringSong Dynasty Extensive Records of the Taiping Era andImperial Readings of the Taiping Era ,Prime Tortoise of the Record Bureau .

*DuringMing Dynasty ,Yongle Encyclopedia ,

*Qing Dynasty ,Gǔjīn Túshū Jíchéng .

*Wikimedia Foundation.
2010.*

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