马军 Books

The Economics of Air Pollution in China: Achieving Better and Cleaner Growth
China s Water Crisis Voices of Asia
China's water crisis
China's water crisis

By Jun Ma

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Xue xiao wei sheng xue
Xue xiao wei sheng xue

By Jun Ma

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C cheng xu she ji jiao cheng
C cheng xu she ji jiao cheng

By Jun Ma

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Da xue ji suan ji ji chu
Yi xue xin xi jian suo
Yi xue xin xi jian suo

By Jun Ma

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Xizang ca ca yi shu
Xizang ca ca yi shu

By Li Huang, Jun Ma

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C Wang luo ying yong bian cheng
C Wang luo ying yong bian cheng

By Jun Ma

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Ben shu zhu yao jie shao ru he yongC#kai faWindowschuang ti wang luo ying yong cheng xu. quan shu fen 3 bu fen, di 1 bu fen jie shao wang luo bian cheng yu bei zhi shi ; di 2 bu fen jie shao xie yi...

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Yue jie de hu die
Yue jie de hu die

By Jun Ma

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If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

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If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.

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