circular
- https://www.dead.net/archives/1969/clippings/article-wb-publication-circular-about-deads-new-single
- https://www.dead.net/archives/1971/clippings/wb-publication-circular-page-1
- https://www.dead.net/archives/1971/clippings/wb-publication-circular-page-2
- https://www.dead.net/archives/1971/clippings/wb-publication-circular-page-3
- https://www.dead.net/archives/1971/clippings/wb-publication-circular-page-4
- https://www.dead.net/archives/1971/clippings/wb-publication-circular-page-5
