Goodreads Librarians Group discussion

Author(s) name(s): I.M. Gabriel
ISBN (or ASIN): N/A (unpublished manuscript, limited distribution)
Publisher: St. Gabriel Press
Publication Date Year: 2019
Publication Date Month: 01
Publication Date Day: 15
Page count: 380
Format: Paperback
Description: A narrator describes a strange conspiracy involving military researchers, nursing homes, and theater groups operating across a fictional American landscape. A novel by I.M. Gabriel.
Language: English
Link to book page: http://www.gabrielembeha.com/emblemi/

I really don't understand. It is listed as an "unpublished manuscript," but a publisher is listed and the format is paperback, which doesn't make sense. How can an unpublished manuscript have a physical copy?

The link should provide verifiable book information, such as the title, author, publication date, and publisher. This link does not show any of that information.