Cita APA (7a ed.)

Rosenberg, N. (1990). Why do firms do basic research (with their own money)? [s.n.].

Cita Chicago Style (17a ed.)

Rosenberg, Nathan. Why Do Firms Do Basic Research (with Their Own Money)? [S.l.]: [s.n.], 1990.

Cita MLA (9a ed.)

Rosenberg, Nathan. Why Do Firms Do Basic Research (with Their Own Money)? [s.n.], 1990.