{"codelist_number":81,"code_value":"37","description_en":"Advertising – first party","description_fr":"Publicité – première partie","description_es":"Publicidad directa","notes_en":"‘Back ads’ – promotional content for other books (that does not include sample content of those books, cf codes 17, 23)","notes_fr":"« Back ads » – contenus promotionnels pour d’autres livres (qui n’incluent pas d’échantillon de contenu pour ces livres, cf. codes 17, 23)","notes_es":"Páginas o contenidos promocionales para otros libros (que no incluyen muestras de contenido de esos libros, ver códigos 17 y 23)","introduced_in_issue":13,"modified_in_issue":62,"deprecated_in_issue":null}