Organisation for Economic Co-operation and Development. Secretariat. (1968). Portugal: [country study. [OECD].
Chicago Style (17th ed.) CitationOrganisation for Economic Co-operation and Development. Secretariat. Portugal: [country Study. [Paris?]: [OECD], 1968.
MLA (9th ed.) CitationOrganisation for Economic Co-operation and Development. Secretariat. Portugal: [country Study. [OECD], 1968.
Warning: These citations may not always be 100% accurate.