'''Important notice''': it should be noted that for the sake of consistency and clarity, a specific field ([[184|184]]) wascreated in the ''UNIMARC authorities format '' to host the target audience codes and the government publicationcodes; consequently a similar [[184 |184]] field was made available in the ''UNIMARC bibliographic format''. When thosedata are coded in a [[184|184 ]] field which is carried either in a linked record describing the work, or within the

positions in this field (pos. 17-19) must contain value “x” “'''x'''” (“not applicable”).