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Popular science (2723), Tales (1554), School, training (1163), Geography (751), 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), Physics (192), Hungarian history (192), Transportation (189), Healthcare (174), Sounded slide (169), Hungarian literature (169), Botany (168), Cartoon-based (133), Technical history (129), ...
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The english site is coming soon.
1977
Current Issues in International Politics (Nemzetközi politika kérdései )
Politics, Popular science
1963
Nuclear Reactors (Atomreaktorok )
Physics, Popular science
1972
Color Pictures from the World of Nuclear Physics (Szines képek az atomfizikából )
Physics, Popular science
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