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Popular science (2721), Tales (1552), School, training (1163), Geography (750), Politics (610), Agriculture (452), Biology (450), Vocational education (398), History (344), Industry (324), Junior (308), Geography of Hungary (303), Biography (277), Art (251), Fine arts (229), Literature (200), Hungarian history (192), Physics (192), Transportation (188), Healthcare (174), Sounded slide (169), Hungarian literature (169), Botany (168), Cartoon-based (133), Technical history (128), ...
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The english site is coming soon.1955
Lakatos szakmai ismeretek 19 20 téma : Általános gyáerásismeret : Mozdulatlan illesztések, csővezetékek szerelése
Industry, School, training, Vocational education
1962
Work as a Life Calling: the True Source of Happiness (A munka-élethivatás: az igazi boldogság )
Politics, Popular science
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