Matèries dins de la cerca
Matèries dins de la cerca
Congresses
75
Education
56
Research
31
Study and teaching
29
Science
24
Social aspects
23
History
17
més ...
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per Wallis, Roger
Taby [Sweden] : Wassbergs Tryckeri AB, 1983
Taby [Sweden] : Wassbergs Tryckeri AB, 1983
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Actes de congresos
Llibre
15
per Sayegh, Raymond
Paris : Unesco, 1990
Paris : Unesco, 1990
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Actes de congresos
Llibre
16
17
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19