300 - Social sciences 380 - Commerce, communications & transportation 600 - Technology 610 - Medicine & health 140 - Specific philosophical schools 3 333 - Economics of land & energy 3 more ... 363 - Other social problems & services 3 620 - Engineering & allied operations 3 170 - Ethics 2 340 - Law 2 370 - Education 2 400 - Language 2 576 - Genetics & evolution 2 580 - Plants (Botany) 2 630 - Agriculture & related technologies 2 700 - The arts; fine & decorative arts 2 720 - Architecture 2 800 - Literature & rhetoric 2 900 - History & geography 2 000 - Computer science, information & general works 1 320 - Political science 1 330 - Economics 1 500 - Natural sciences & mathematics 1 540 - Chemistry & allied sciences 1 see all ... less ...

English 4

Directory of Open Access Books 4

Gonzalez-Aguilera, Diego 2 Rodríguez-Gonzálvez, Pablo 2 Abelha, Marta 1 Fernandes, Sandra Raquel Gonçalves 1 Ferreira-Oliveira, Ana Teresa 1 Luo, Suhuai 1 more ... Shaukat, Kamran 1 see all ... less ...

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