Cita APA (7a ed.)

Heitor, T. V., & Freire da Silva, J. M. R. (2009). Portugal's Secondary School Modernisation Programme. OECD Publishing.

Cita Chicago Style (17a ed.)

Heitor, Teresa V., y José M. R. Freire da Silva. Portugal's Secondary School Modernisation Programme. Paris: OECD Publishing, 2009.

Cita MLA (9a ed.)

Heitor, Teresa V., y José M. R. Freire da Silva. Portugal's Secondary School Modernisation Programme. OECD Publishing, 2009.