Cita APA (7a ed.)

Rothwell, R., & Dodgson, M. (1991). External linkages and innovation in small and medium-sized enterprises. [s.n.].

Cita Chicago Style (17a ed.)

Rothwell, Roy, y Mark Dodgson. External Linkages and Innovation in Small and Medium-sized Enterprises. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Rothwell, Roy, y Mark Dodgson. External Linkages and Innovation in Small and Medium-sized Enterprises. [s.n.], 1991.