Specific Rules #5 for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Multiple publishers

If more than one publisher is found in a document, use the first one given or the one set in the largest type or bold type.

An alternative is to use the publisher likely to be most familiar to the audience of the reference list. For example, use an American publisher for a US audience and a London publisher for a British one.

Do not list multiple publishers. For those publications with joint or co-publishers, use the name given first as the publisher and include the name of the other(s) as a note if desired. For example, use "Jointly published by the Canadian Pharmacists Association".

End publisher information with a semicolon.

Según:

Citing Medicine: The NLM Style Guide for Authors, Editors, and Publishers [Internet]. 2nd edition. Chapter 2: Books

Related:

General Rules for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style

Specific Rules #1 for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Abbreviated words in publisher names

Specific Rules #2 for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Non-English names for publishers

Specific Rules #3 for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Government agencies and other national and international bodies as publisher

Specific Rules #4 for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Joint publication

Specific Rules #5 for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: Multiple publishers

Specific Rules #6 for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style: No publisher can be found

Examples for Publisher (required) for the Volume for Individual Volumes With a Separate Title and Separate Authors/Editors Vancouver Style