(1988). Politica Nacional. OPS/OMS.
Chicago Style (17th ed.) CitationPolitica Nacional. s.l: OPS/OMS, 1988.
MLA (9th ed.) CitationPolitica Nacional. OPS/OMS, 1988.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.
(1988). Politica Nacional. OPS/OMS.
Chicago Style (17th ed.) CitationPolitica Nacional. s.l: OPS/OMS, 1988.
MLA (9th ed.) CitationPolitica Nacional. OPS/OMS, 1988.