 " A New Horror in Indochina " . Time . 27 April 1970 . Retrieved 10 April 2007 . 
 " A New Horror in Indochina " . Time . 27 April 1970 . Retrieved 10 April 2007 . 
 A New Horror in Indochina  . Time . 27 April 1970 . Retrieved 10 April 2007 .