Below you will find documents called List of Supplement Instructions and Guidelines for Serial Supplements as well as follow the cataloging standards found in RDA and MARC 21 Bibliographic. If you have any questions about the supplement(s), please ask cataloging for assistance.

• 222 - Key Title

• 246 - Varying Form of Title

• 525 - Supplement Note

• 580 - Linking Entry Complexity Note 

• 770 - Supplement/Special Issue Entry 

• 772 - Supplement Parent Entry

• 773 - Host Item Entry

Term: Tête-bêche:

The term "dos-à-dos" is also used to refer to a single volume in which two texts are bound together, with one text rotated 180° relative to the other, such that when one text runs head-to-tail, the other runs tail-to-head. However, this type of binding is properly termed tête-bêche (/tɛtˈbɛʃ/) (from the French meaning "head-to-toe", literally referring to a type of bed).[7] Books bound in this way have no back cover, but instead have two front covers and a single spine with two titles. When a reader reaches the end of the text of one of the works, the next page is the (upside-down) last page of the other work. These volumes are also referred to as "upside-down books" or "reversible books".

https://en.wikipedia.org/wiki/Dos-%C3%A0-dos_binding

Processing tête-bêche supplements:

• Add a "Tête-bêche format sups (flip over sups):" note to the check in record.
• Add a public note to the box."Incl tête-bêche format sup: [Sup. Title]".The supplement title usually comes from the front cover of the tête-bêche supplement or mentioned somewhere in the issue.