Nro CG­NA­17­639­EN­C (+ DE.FR), ±752 s., ja Nro CG­NB­I7­639­EN­C (+ DE.FR), ±198 s.. bO C (2 osaa + CD­ROM). ###>The novelty of this edition is the emphasis on the economic impact of research activities in Europe: Cat.: CG­NA­17­