330 - Economics 333 - Economics of land & energy 414 - Phonology & phonetics 700 - The arts; fine & decorative arts 9 000 - Computer science, information & general works 8 363 - Other social problems & services 7 more ... 900 - History & geography 7 600 - Technology 6 320 - Political science 5 620 - Engineering & allied operations 5 380 - Commerce, communications & transportation 4 500 - Natural sciences & mathematics 3 551 - Geology, hydrology & meteorology 3 576 - Genetics & evolution 3 140 - Specific philosophical schools 2 370 - Education 2 540 - Chemistry & allied sciences 2 610 - Medicine & health 2 304 - Factors affecting social behavior 1 340 - Law 1 400 - Language 1 581 - Specific topics in natural history 1 630 - Agriculture & related technologies 1 720 - Architecture 1 800 - Literature & rhetoric 1 see all ... less ...

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Directory of Open Access Books

Yurish, Sergey Y. 2 Albqmi, Mha 1 Borja, Rafael 1 Dong, Jian 1 Dong, Jinwei 1 Gan, Muye 1 more ... Hashemi, Shervin 1 Hodaifa, Gassan 1 Jiang, Dong 1 K. BouDagher-Fadel, Marcelle 1 Lekkas, Efthymios 1 Lin, Gang 1 Ma, Li 1 Mavroulis, Spyridon 1 Pires, José Carlos Magalhães 1 Shan, Zhengying 1 Szurgacz, Dawid 1 Yigitcanlar, Tan 1 Zhang, Yingnan 1 Zhironkin, Sergey 1 see all ... less ...

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