Subfield $i - Relationship information:  [4XX and 5XX:  Tracing Fields - Simple Cross References]

Subfield $i may contain either a designation of a relationship of the entity in a 4XX or 5XX field to the 1XX entity in the record or it may contain a textual reference instruction phrase that is to be used for a user display indicating the relationship of the 1XX entity in the record to the entity in a 4XX or 5XX field.  If the subfield contains a Relationship designation, the appropriate reference instruction phrase may be derived from it.  The relationship may be name to name (if only names of persons, families, or corporate bodies are involved) or resource to resource (if name/titles or titles are involved).

Relationship designation:  When a tracing field contains a relationship designation in subfield $i, control subfield $w/0 contains code r (Relationship designation in subfield $i or $4).  Code r indicates that the generation of a tag related reference instruction phrase in a cross reference display should be suppressed.  The content of subfield $i or $4 should be used to generate the reference instruction phrase that is used in a cross reference display.

Example:

100  1#  $aClemens, Samuel,$d1835-1910

500  ##  $wr$ialternate identity$aTwain, Mark,$d1835-1910

User display example:

Twain, Mark, 1835-1910

See also his real identity Clemens, Samuel, 1835-1910

Reciprocal of previous example:

100  1#  $aTwain, Mark,$d1835-1910

500  ##  $wr$ireal identity$aClemens, Samuel,$d1835-1910

User display example:

Clemens, Samuel, 1835-1910

See also his alternate identity Twain, Mark, 1835-1910

Reference instruction phrase:  When a tracing field contains a reference instruction phrase in subfield $i, control subfield $w/0 contains code i (Reference instruction phrase in subfield $i).  Code i indicates that the generation of a tag-related reference instruction phrase in a cross reference display should be suppressed.  The content of subfield $i is the reference instruction phrase that is used in a cross reference display.

Examples:

100  1#  $aClemens, Samuel,$d1835-1910

500  1#  $wi$iSee also his real identity$aTwain, Mark,$d1835-1910

User display example:

Twain, Mark, 1835-1910

See also his real identity Clemens, Samuel, 1835-1910

Reciprocal of previous example:

100  1#  $aTwain, Mark,$d1835-1910

500  1#  $wi$iSee also his alternate identity$aClemens, Samuel,$d1835-1910

User display example:

Clemens, Samuel, 1835-1910

See also his alternate identity Twain, Mark, 1835-1910

008/09   a  [established heading record]

151  ##  $aSri Lanka

451  ##  $wib$iFor subject entries search under$aCeylon

551  ##  $waa$aCeylon

[Two cross references are required because of varying subject and name reference structures.]

User display example from field 451:

Ceylon

For subject entries search under:

Sri Lanka

User display example from field 551:

Ceylon

search also under later heading:

Sri Lanka

To return:

Use the key.