Following the Communist Party of Kampuchea victory , all contact with the outside world was shut down , but following an editorial in '' Le Monde '' in February 1976 , Ponchaud wrote a three-page article , which described the systematic abuses he had witnessed while Phnom Penh was being emptied , and following this he wrote '' Cambodge année zéro '' ( Cambodia : Year Zero ) , a book on the Cambodian genocide , which was published in 1977 , and his book is credited with being one of the first publications which dealt with the genocide . William Shawcross has said that the book is , " the best account of Khmer Rouge rule "
Cambodian genocide
Cambodian genocide
François Ponchaud