| First Indicator | Second Indicator |
|---|---|
| Undefined # - Undefined |
Undefined # - Undefined |
| Subfield Codes | |
|---|---|
|
|
Tracing for a geographic name see from reference.
Used in an established heading or established heading and subdivision record to trace a see from reference from a geographic name not used in an established heading.
Most of the content designators defined for field 451 are the same as those defined for field 151 (Heading-Geographic Name), field 551 (See Also From Tracing-Geographic Name), and field 751 (Established Heading Linking Entry-Geographic Name). Description, guidelines, and input conventions for shared content designators are given in the X51 Geographic Names-General Information section.
Guidelines for using subfield $w (Control subfield), subfield $i (Relationship information), and subfield $4 (Relationship) in field 451 are given in the Tracings and References-General Information section.
| 151 | ##$aUrsa Major | ||||||||
| 451 | ##$aDipper (Constellation) | ||||||||
| 151 | ##$aAdirondack Mountains (N.Y.) | ||||||||
| 451 | ##$aAdirondacks (N.Y.) | ||||||||
| 151 | ##$aFort Lesley J. McNair (Washington, D.C.) | ||||||||
| 451 | ##$aWashington Barracks (Washington, D.C.) | ||||||||
| 151 | ##$aMedina (Ohio) | ||||||||
| 451 | ##$wnnaa$aMedina, Ohio | ||||||||
| 151 | ##$aGeorgetown (Washington, D.C.)$vMaps | ||||||||
| 451 | ##$aWest Washington (D.C.)$vMaps | ||||||||