Cliff, Tony (2000). "chapter 1". A World to Win. London: Bookmarks.
This allegation seems to have originated from Jim Higgins in his booklet More Years for the Locusts, but it would seem to be contradicted by the fact that International Socialism, Nos. 47 and 49 carried prominent ads for the book The Permanent War Economy by T.N. Vance, who is now acknowledged to be the originator of the theory. Both Higgins and Cliff are listed in No. 49 as editors of that issue.
