Tip #144: Punctuation reminders for the 300 field

Punctuation between the subfields in the 300 field is determined by the subfield that follows the punctuation, not the subfield where the punctuation is actually located. This means that subfield “a” may end in either a colon or a semicolon, depending on whether or not it is followed by a subfield “b”.

Here are the rules:

  • Subfield b is always preceded by a colon (: ‡b)
  • Subfield c is always preceded by a semicolon ( ; ‡c)
  • Subfield e is always preceded by a plus sign (+ ‡e)

Some examples:

300 ‡a 272 p. : ‡b col. ill., col. maps ; ‡c 28 cm. (A colon is used after the pagination because it is followed by a subfield b)
300 ‡a 548 p. ; ‡c 28 cm. (A semicolon is used after the pagination because it is followed by a subfield c)
300 ‡a xvi, 338 p. : ‡b ill. ; ‡c24 cm. + ‡e 1 sound disc (digital ; 4 3/4 in.)

Reminders:

  • Be sure to leave a space before the punctuation mark. Example: 28 p. (space) : ‡b geneal. table (space) ; ‡c 24 cm.
  • If you note maps, plates, charts, or other physical details in the 300, don’t forget to code them in the Ills (illustrations) Fixed Field.

Originally published on August 3, 2012.


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