APA-viite (7. p.)
(2013). Outsourcing procurement in the public sector. Asian Development Bank.
Chicago-viite (17. p.)
Outsourcing Procurement in the Public Sector. Mandaluyong, Philippines: Asian Development Bank, 2013.
MLA-viite (9. p.)
Outsourcing Procurement in the Public Sector. Asian Development Bank, 2013.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.