Cita APA (7a ed.)

Barney, J. B. (1991). Firm resources and sustained competitive advantage. [s.n.].

Cita Chicago Style (17a ed.)

Barney, Jay B. Firm Resources and Sustained Competitive Advantage. [S.l.]: [s.n.], 1991.

Cita MLA (9a ed.)

Barney, Jay B. Firm Resources and Sustained Competitive Advantage. [s.n.], 1991.