Disclaimer: I apologize for the vagueness of this post as i do not wish to speak negatively about anyone particular on a public forum.
I've been doing research on a specific topic looking at two articles, one a book published in the 1991 and the other an article published in 1964 in an academic journal.
I noticed that the procedures followed in both papers are very similar and the method seems almost identical, However the 1991 book makes no reference to the 1964 paper and claims its model is new.
I find this incredibly dishonest, its possible that I'm an idealist with reference to a highschool understanding of academic honesty but I think at the very least it should be reported to the publishers.
How do I report possible academic plagiarism to publishers? Is such an activity worthwhile?