Cita APA (7a ed.)
(1998). Foreign trade by commodities 1991-1996: Mexico, Austria, Iceland, Norway, Spain, Portugal, United Kingdom. OECD.
Cita Chicago Style (17a ed.)
Foreign Trade by Commodities 1991-1996: Mexico, Austria, Iceland, Norway, Spain, Portugal, United Kingdom. Paris: OECD, 1998.
Cita MLA (9a ed.)
Foreign Trade by Commodities 1991-1996: Mexico, Austria, Iceland, Norway, Spain, Portugal, United Kingdom. OECD, 1998.
Precaución: Estas citas no son 100% exactas.