Cita APA (7a ed.)

Cockburn, I. (1997). Public-Private Interaction and the Productivity of Pharmaceutical Research. National Bureau of Economic Research.

Cita Chicago Style (17a ed.)

Cockburn, Iain. Public-Private Interaction and the Productivity of Pharmaceutical Research. Cambridge, Massachusetts: National Bureau of Economic Research, 1997.

Cita MLA (9a ed.)

Cockburn, Iain. Public-Private Interaction and the Productivity of Pharmaceutical Research. National Bureau of Economic Research, 1997.