140 - Specific philosophical schools 330 - Economics 363 - Other social problems & services 380 - Commerce, communications & transportation 600 - Technology 333 - Economics of land & energy 9 more ... 620 - Engineering & allied operations 9 700 - The arts; fine & decorative arts 9 000 - Computer science, information & general works 8 370 - Education 6 900 - History & geography 6 320 - Political science 4 551 - Geology, hydrology & meteorology 4 576 - Genetics & evolution 4 720 - Architecture 4 610 - Medicine & health 3 658 - General management 3 400 - Language 2 581 - Specific topics in natural history 2 657 - Accounting 2 800 - Literature & rhetoric 2 160 - Logic 1 336 - Public finance 1 340 - Law 1 361 - Social problems & social welfare in general 1 410 - Linguistics 1 500 - Natural sciences & mathematics 1 580 - Plants (Botany) 1 630 - Agriculture & related technologies 1 see all ... less ...

English 15

Directory of Open Access Books 15

Azevedo, Susana Garrido 1 Barrientos, Antonio 1 Bi, Zhuming 1 Cai, Yuzhuo 1 Chen, Qiongqiong 1 Da Xu, Li 1 more ... Farooque, Aitazaz A. 1 Fuinhas, José Alberto 1 Gao, Yuan 1 Gatto, Andrea 1 González-Vila Puchades, Laura 1 Gómez, Víctor Alonso 1 Halkos, George 1 Hernández-Callejo, Luis 1 Jin, Xue-Bo 1 Kamruzzaman, Md 1 Koengkan, Matheus 1 Lanza, Stefania 1 Leite, Vicente 1 Lytras, Miltiadis 1 Ma, Jinyuan 1 Matias, João Carlos de Oliveira 1 Mercadé Melé, Pere 1 Molina Gómez, Jesús 1 Muzirafuti, Anselme 1 Nesmachnow, Sergio 1 Ordóñez de Pablos, Patricia 1 Ouyang, Puren 1 Paraforos, Dimitrios 1 Pimentel, Carina 1 Randazzo, Giovanni 1 Roldán Gómez, Juan Jesús 1 Sadik-Zada, Elkhan Richard 1 Shamshiri, Redmond R. 1 Sousa, Maria José 1 Suleman, Fátima 1 Sultan, Muhammad 1 Yigitcanlar, Tan 1 Zhou, Yuguang 1 de Andres Sanchez, Jorge 1 de Barros Santiago, Renato Filipe 1 see all ... less ...

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