 " Cambodia : Toward War by Proxy " . Time . 1 June 1970 . Retrieved 10 April 2007 . 
 " Cambodia : Toward War by Proxy " . Time . 1 June 1970 . Retrieved 10 April 2007 . 
 Cambodia : Toward War by Proxy  . Time . 1 June 1970 . Retrieved 10 April 2007 .