This can be a book publisher, museum, association, movie studio, or other organization. The publisher would not be included for the following citations:
- Journal, magazine, or newspaper
- Self-published works
- Websites where the page title is the same as the publisher
- Websites that make content available but is not involved in publication of the content (YouTube, WordPress, databases like JSTOR, etc.)
For more information on formatting publishers and publication dates, see pages 40-42 in the MLA Handbook.