YOUTH (AGE-GRADE)
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BTLIFE AGE + AGE-GRADES
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UDC"465.13/.19"
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Descriptor GERJUGEND (LEBENSPHASE)
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Descriptor ENGYOUTH (AGE-GRADE)
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Descriptor FREJEUNES (CATEGORIE D'AGE)
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Variant GERADOLESZENZ (LEBENSPHASE)
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Variant GERJUGENDALTER (LEBENSPHASE)
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Variant ENGADOLESCENCE (AGE-GRADE)
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Variant FREADOLESCENCE (CATEGORIE D'AGE)
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RTADOLESCENTS (PERSONS)
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RTYOUTHS AND MINORS (PERSONS)