330 - Economics 551 - Geology, hydrology & meteorology 600 - Technology 900 - History & geography 620 - Engineering & allied operations 17 363 - Other social problems & services 14 more ... 333 - Economics of land & energy 13 380 - Commerce, communications & transportation 11 700 - The arts; fine & decorative arts 10 320 - Political science 6 610 - Medicine & health 6 000 - Computer science, information & general works 5 580 - Plants (Botany) 5 720 - Architecture 4 370 - Education 3 140 - Specific philosophical schools 2 340 - Law 2 170 - Ethics 1 360 - Social problems & services; associations 1 414 - Phonology & phonetics 1 500 - Natural sciences & mathematics 1 530 - Physics 1 540 - Chemistry & allied sciences 1 630 - Agriculture & related technologies 1 see all ... less ...

English 20

Directory of Open Access Books 19 OAPEN 1

Bao, Haijun 2 Ochoa, Jorge 2 Shen, Liyin 2 Akizu-Gardoki, Ortzi 1 Ala-Mantila, Sanna 1 Altan, Haşim 1 more ... Bailey-Charteris, Bronwyn 1 Dimitrakopoulos, Panayiotis G. 1 Formoso, Carlos Torres 1 Frattari, Antonio 1 Fujii, Hidemichi 1 Garrote, Luis 1 Gielen, Dolf 1 Heinonen, Jukka 1 Kagawa, Shigemi 1 Kamiński, Jacek 1 Konstantakopoulou, Foteini 1 Lanza, Stefania 1 Lin, Zihuai 1 Manfreda, Salvatore 1 Molina, José-Luis 1 Muzirafuti, Anselme 1 Nikolaou, Ioannis 1 Noguchi, Masa 1 Noorani, Arshiya 1 Pagnotta, Mario 1 Paraforos, Dimitrios 1 Picchio, Rodolfo 1 Randazzo, Giovanni 1 Refice, Alberto 1 Rusu, Eugen 1 Samela, Caterina 1 Santos, Paulo 1 Scholz, Miklas 1 Schweier, Janine 1 Silva, Ana 1 Tramutoli, Valerio 1 Tsagarakis, Konstantinos P. 1 Venanzi, Rachele 1 Xiang, Wei 1 Zamorano, Montserrat 1 de Brito, Jorge 1 see all ... less ...

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