APA
(1998). Vietnam 1961: foreign relations of the United states,1961-1932 vol I. Washington D.C: United States Government Printing Office.
Chicago
1998. Vietnam 1961: foreign relations of the United states,1961-1932 vol I. Washington D.C: United States Government Printing Office.
Harvard
(1998). Vietnam 1961: foreign relations of the United states,1961-1932 vol I. Washington D.C: United States Government Printing Office.
MLA
Vietnam 1961: foreign relations of the United states,1961-1932 vol I. Washington D.C: United States Government Printing Office. 1998.
