Cita APA (7a ed.)

Acs, Z. J., & Audretsch, D. B. (1990). Innovation and small firms. MIT.

Cita Chicago Style (17a ed.)

Acs, Zoltan J., y David B. Audretsch. Innovation and Small Firms. Cambridge (Massachusetts) [etc.]: MIT, 1990.

Cita MLA (9a ed.)

Acs, Zoltan J., y David B. Audretsch. Innovation and Small Firms. MIT, 1990.