 " Exodus on the Mekong " . Time . 25 May 1970 . Retrieved 10 April 2007 . 
 " Exodus on the Mekong " . Time . 25 May 1970 . Retrieved 10 April 2007 . 
 Exodus on da Mekong  . Time . 25 May 1970 . Retrieved 10 April 2007 .