Organisation for Economic Co-operation and Development & ProQuest (Firm). (2008). Peru. OECD.
Chicago-čujuhus (17. p.)Organisation for Economic Co-operation and Development juo ProQuest (Firm). Peru. Paris: OECD, 2008.
MLA-čujuhus (9. p.)Organisation for Economic Co-operation and Development juo ProQuest (Firm). Peru. OECD, 2008.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.