APA-referens (7:e uppl.)

(2012). OECD economic surveys: Portugal 2012. OECD.

Chicago-referens (17:e uppl.)

OECD Economic Surveys: Portugal 2012. [Place of publication not identified]: OECD, 2012.

MLA-referens (9:e uppl.)

OECD Economic Surveys: Portugal 2012. OECD, 2012.