644 Subfield $a - Series analysis practice:

Subfield $a contains a one-character alphabetic code that indicates the analysis practice for the series:

f  - Analyzed in full

p - Analyzed in part

n - Not analyzed

Varying analysis practices are contained in separate 644 fields.

Examples:

130  #0  $aMunkavédelem, szociálpolitika

644  ##  $af$5DLC

130  #0  $aRapports des campagnes à la mer

644  ##  $ap$5DLC

130  #0  $aMonographs of the Society for Research in Child Development

644  ##  $an$dv. 49- $5DLC

644  ##  $af$dv. 1-48$5DLC