Cita APA (7th ed.)

Piga, G., & Tátrai, T. (2015). Public procurement policy. Routledge.

Cita Chicago (17th ed.)

Piga, Gustavo, i Tünde Tátrai. Public Procurement Policy. Abingdon, Oxon ; New York, NY: Routledge, 2015.

Cita MLA (9th ed.)

Piga, Gustavo, i Tünde Tátrai. Public Procurement Policy. Routledge, 2015.