Cita APA (7a ed.)

(2015). The Rate and Direction of Inventive Activity: Economic and Social Factors. Princeton University Press.

Cita Chicago Style (17a ed.)

The Rate and Direction of Inventive Activity: Economic and Social Factors. Princeton: Princeton University Press, 2015.

Cita MLA (8a ed.)

The Rate and Direction of Inventive Activity: Economic and Social Factors. Princeton University Press, 2015.