Non-routine information in titles
Non-routine information is important for identification and retrieval, provide it in brackets immediately after the title and any parenthetical information. Capitalize the first letter of the notation. Brackets indicate a description of form, not a title.
Pope Francis. (2013). Lumen fidei [The light of faith] [Encyclical letter]. http://w2.vatican.va/content/francesco/en/encyclicals/documents/papa-francesco_20130629_enciclica-lumen-fidei.html
The Prince of Wales (with Juniper, T., & Skelly, I). (2010). Harmony: A new way of looking at our world. HarperCollins.
Lee, C. (2017 , May 31). What's in the name? Names with titles in them. APA Style Blog. https://blog.apastyle.org/apastyle/2017/05/whats-in-a-name-names-with-titles-in-them.html