How Form Subdivisions
Appear in Headings
Subfield
$v can appear in any 6XX subject string:
600 00 Madonna,
$d 1958- $v Pictorial works.
610 20 Yale
University $x Alumni $v Directories.
650
0 Word processing $v Software.
651
0 New Haven (Conn.) $v Maps.
Multiple form
subdivisions may appear in a string:
651 0 Hamden
(Conn.) $v Biography $v Anecdotes.
Form subdivisions
are usually (but not always) the last subfield:
630 00 Bible $v Dictionaries.
BUT
630 00 Bible $v
Dictionaries $x French.
The same subdivision
may appear as $v or $x:
650 0
Science $x Periodicals $v Bibliography $v Periodicals.
