 " Cambodia : Communists on the Rampage " . Time . 4 May 1970 . Retrieved 10 April 2007 . 
 " Cambodia : Communists on the Rampage " . Time . 4 May 1970 . Retrieved 10 April 2007 . 
 Cambodia : Communists on da Rampage  . Time . 4 May 1970 . Retrieved 10 April 2007 .