Do not send a separate CCL Label Request with a surrogate. Labels will automatically be produced for each surrogate title cataloged. The chief source is the title page. For a foreign book, information may also appear in a colophon on a back page. Sets Take the information from the first volume or earliest volume in hand.
Computer files Use the title screen, if any, the main menu, or program statements.
Printouts of these screens are used as surrogates. If you cannot access the software itself, consider the labels on the physical carrier, plus publication information from accompanying documentation, and the external container to be the chief source. The label on the container, or cassette housing, or any external container available. When information is not available from these, use accompanying textual material, containers that are not integral parts of the material, or any other available source as the chief source. Use the title on the item itself, including any labels that are permanently affixed to the item or container that is an integral part of the item.