Cita APA (7a ed.)

Usai, S. (2008). The Geography of Inventive Activities in OECD Regions. OECD Publishing.

Cita Chicago Style (17a ed.)

Usai, Stefano. The Geography of Inventive Activities in OECD Regions. Paris: OECD Publishing, 2008.

Cita MLA (9a ed.)

Usai, Stefano. The Geography of Inventive Activities in OECD Regions. OECD Publishing, 2008.