5D. Size and format
5D1. Give the height of a publication (based on the copy in hand) in centimeters exact to within one centimeter, counting a fraction of a centimeter as a full centimeter. When a publication measures less than 10 centimeters, give the height in millimeters. Example 1
When a publication is bound, measure the height of the binding. When the height of the publication differs by 3 centimeters or more from the height of the binding, specify both. Example 2
When a publication is unbound or inserted in a library binder, measure the height of the publication itself.
For publications issued before 1801, add the bibliographical format of the publication in parentheses following the size statement whenever the format can be determined. If desired, give the format also for later publications. Give the format in abbreviated form (fol., 4to, 8vo, 12mo, etc.; use 1 for volumes made up of unfolded sheets). Example 3
5D2. When the width of a volume is greater than the height or less than half the height, give the height followed by the width, separated by a multiplication sign. Example
5D3. When the volumes of a multivolume set differ in size, give the smallest or smaller size and the largest or larger size, separated by a hyphen. Example
5D4. When a volume consists of separate physical units of varying height bound together, give the height of the binding only.
5D5. Single-sheet publications
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