A loose-leaf publication intended for updating is treated as a continuing resource, even when it has only one volume. Since the number of volumes is not recorded in field 300, it must be given in the holdings field 863. If there is no sequential designation, the extent of holdings is given in the form “1 v.”

Example 21: Single-volume loose-leaf

Bibliographic record:
LDR/07: i [integrating resource]
008/21: l [updating loose-leaf]
008/34: 2 [integrated entry]
300 ^^ |a volumes (loose-leaf)

Holdings record:
LDR/06: v [multipart item]
LDR/17: 4 [holdings level 4]
008/06: 4 [currently received]
008/16: 1 [complete]
853 03 |8 1 |a (unit)
863 ^1 |8 1.1 |a 1 v.

Example 22: Loose-leaf service with multiple sections, transfer binders, updates, etc.

A "loose-leaf service" can consist of one or more main sections, each consisting of one or more loose-leaf binders, plus transfer binders (binders into which material of permanent value is transferred from binders containing current material), indexes, supplementary pamphlets, a newsletter, regular updates for interfiling, etc.

The title page of the resource, as well as any type of enumeration found on the resource itself is used to identify the basic bibliographic unit of each loose-leaf set. Updates can carry their own enumeration and/or chronology and provide instruction as to how the update is to be integrated into the resource.

Bibliographic record:
LDR/07: i [integrating resource]
008/21: l [updating loose-leaf]
008/34: 2 [integrated entry]
245 00 |a Labor law reporter.
300 ^^ |a volumes (loose-leaf) ; |c 25 cm.
500 ^^ |a Material of a permanent nature is removed from main set and filed in transfer binders with titles: NLRB decisions; Labor articles; Labor relations; Labor relations, current comments & CCH analysis, 1978-; and Wages-hours administrative rulings
505 0^ |a Labor relations (6 v.) -- Wages-hours (2 v.) -- State laws (3 v.) -- State law decisions (1 v.) -- Quick finder

Holdings record:
LDR/06: v [multipart item]
LDR/17: 4 [holdings level 4]
008/06: 4 [currently received]
008/16: 1 [complete]
853 20 |8 1 |a v.
863 40 |8 1.1 |a 1-6 |o Labor relations
863 40 |8 1.2 |a 1-2 |o Wages-hours
863 40 |8 1.3 |a 1-3 |o State laws
863 41 |8 1.4 |a 1 |o State law decisions
854 13 |8 1 |a (year)
864 41 |8 1.1 |a 1955/1956 |o Transfer binder: NLRB decisions
864 41 |8 1.2 |a 1999/2001 |o Transfer binder: Labor relations
864 40 |8 1.3 |a 1978/1983-1983/1992 |o Transfer binders: Labor relations, current comments & CCH analysis
864 40 |8 1.4 |a 1961/1966-1999/2002:Jan. |o Transfer binders: Wages-hours administrative rulings
854 03 |8 2 |a (unit)
864 41 |8 2.1 |a 1 v. |o Transfer binder: Labor articles
855 ^^ |8 1 |a (unit)
865 41 |8 1.1 |a 1 v. |o Quick finder

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