Its Rules of the game, 1974: t.p. (Diagram Group) t.p. verso (Diagram Visual Information Ltd.)

Funky facts, 1996: CIP t.p. (Diagram Visual Limited) t.p. verso (Diagram Visual Information Ltd., London, England)

1002 ways to waste your working time, 1996: CIP t.p. (Diagram Group) pub. info. (Diagram Visual Information Group)

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