X00 Subfield $l - Language of a work:
Subfield $l contains the name of a language(s) (or a term representing the language, e.g., Polyglot) used with a title of a work in a name/title heading.
Examples:
100 1# $aCéline, Louis-Ferdinand,$d1894-1961.$tEntretiens avec le professeur Y.$lEnglish & French
100 1# $aJacobs, Una.$tSonnen-Uhr.$lEnglish
100 1# $aBrezina, Otokar,$d1868-1929.$tPoems.$lPolyglot