Cita APA (7a ed.)

Nelson, R. R. (1993). National innovation systems: A comparative analysis. Oxford University.

Cita Chicago Style (17a ed.)

Nelson, Richard R. National Innovation Systems: A Comparative Analysis. New York: Oxford University, 1993.

Cita MLA (9a ed.)

Nelson, Richard R. National Innovation Systems: A Comparative Analysis. Oxford University, 1993.