X00 Subfield $s - Version: [600, 700, 800]

Subfield $s contains version, edition, etc., information used with a title of a work in a name/title field.

Examples:

700 1#$aHarrison, Tinsley Randolph,$d1900-$tPrinciples of internal medicine.$s9th ed.

800 1#$aShakespeare, William,$d1564-1616.$tWorks.$f1981.$sMethuen.