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Explicitly mentioned as a book written by the 'rogue MI5 agent' Peter Wright in the 1980s, in which he claimed that he and MI5 officers had been conspiring against Wilson

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Described as 'the Le Carré novel' and 'the ultimate 1974 novel' published in summer 1974, featuring themes of moles and espionage that reflected the paranoid atmosphere of the time

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Listed among cultural works from 1974 that reflected a sense of national decline and decay

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Mentioned as a work Martin Amis was writing in 1974, listed alongside other works reflecting themes of decline

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Mentioned as a work Ballard was writing in 1974, listed alongside other works reflecting themes of societal breakdown

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Described as a 'blueprint' written by Brigadier Frank Kitson in 1971 about military operations against political extremists in Britain