@cite{reference} ¶Use the @cite command for the name of a book that lacks a
companion Info file. For example, we could refer to A Book.
The command selects a slanted font in the printed
manual, and generates quotation marks in the Info file.
If a book is written in Texinfo, it is better to use a cross-reference
command since a reader can easily follow such a reference in Info.
See @xref.