 | This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | ||||||||||
| |||||||||||
I think this article would be improved by giving a textbook reference. It seems like all of the references are to historical essays and material Gumshoe2 (talk) 19:13, 4 July 2020 (UTC)
- Okay. I agree. But I don't know any. :( Dennui (talk) 19:22, 4 July 2020 (UTC)