The full name of the publisher (publisher’s imprint, as shown on the title page) should be given, abbreviated in accordance with the style used by JAMA and the Archives Journals (see 14.7, Abbreviations, Business Firms) but without any punctuation. Even if the name of a publishing firm has changed, use the name that was given on the published work. The following is an example of the format for a book with a joint imprint:
1. Henderson DA, Inglesby TV, O'Toole T, eds. Bioterrorism. Chicago, IL: JAMA/Archives and AMA Press; 2002.
Consult the latest Books in Print7 to verify names of publishers, listings, online bookstores, or the Library of Congress catalog.
If there is no publisher’s name available, use “Publisher unknown” in the place of the publisher’s location and name.