APA aipamena

(1970). Economic and social assistance to Vietnam 1970. [S.l.]: [s.n.].

Chicago Style aipamena

Economic and Social Assistance to Vietnam 1970. [S.l.]: [s.n.], 1970.

MLA aipamena

Economic and Social Assistance to Vietnam 1970. [S.l.]: [s.n.], 1970.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.