320 - Political science 330 - Economics 363 - Other social problems & services 380 - Commerce, communications & transportation 700 - The arts; fine & decorative arts 900 - History & geography more ... 333 - Economics of land & energy 7 000 - Computer science, information & general works 5 370 - Education 4 600 - Technology 4 720 - Architecture 4 140 - Specific philosophical schools 3 551 - Geology, hydrology & meteorology 3 581 - Specific topics in natural history 3 610 - Medicine & health 3 580 - Plants (Botany) 2 620 - Engineering & allied operations 2 300 - Social sciences 1 301 - Sociology & anthropology 1 304 - Factors affecting social behavior 1 414 - Phonology & phonetics 1 550 - Earth sciences 1 630 - Agriculture & related technologies 1 658 - General management 1 see all ... less ...

English 9

Directory of Open Access Books 9

Bao, Haijun 2 Ochoa, Jorge 2 Shen, Liyin 2 Yigitcanlar, Tan 2 Fernández-Manjarrés, Juan F. 1 Gascón, José Luis Gurría 1 more ... Gómez-Losada, Álvaro 1 Kamruzzaman, Md 1 Kuoni, Carin 1 Lukatsch, Wilma 1 Masot, Ana Nieto 1 Pires, José Carlos Magalhães 1 Richards, Russell 1 Sahin, Oz 1 Sansilvestri, Roxane 1 see all ... less ...

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