0B1. The description must always include the following elements, regardless of the completeness of the information available: title proper, place of publication or distribution, publisher or distributor, date of publication or distribution, extent of item, and dimension of item. Also include other elements of description as set out in the following rules whenever they are available.

0B2. In general, with the exception of date of publication, base the description on the latest item in hand. If the required components of the description are not available from the prescribed sources for each of the components, take the necessary information from any available source, whether this be a reference work or the content of the looseleaf publication itself. Give in a note the source of any component of the description not taken from a prescribed source.

See also:

0. General Rules