conducted and interpreted by the NPD Group, Inc., for the American Booksellers Association, the Association of American Publishers, and the Book Industry Study Group, Inc
sous la direction de Pascal Fouché, Daniel Péchoin, Philippe Schuwer ; et la responsabilité scientifique de Pascal Fouché, Jean-Dominique Mellot, Alain Nave ... [and others] ; préface de Henri-Jean Martin ; [direction générale Pascal Fouché]