Cita APA (7a ed.)

Rosenbaum, D. I., & Lamort, F. (1992). Entry, barriers, exit, and sunk costs: An analysis. [s.n.].

Cita Chicago Style (17a ed.)

Rosenbaum, David I., y Fabian Lamort. Entry, Barriers, Exit, and Sunk Costs: An Analysis. [S.l.]: [s.n.], 1992.

Cita MLA (9a ed.)

Rosenbaum, David I., y Fabian Lamort. Entry, Barriers, Exit, and Sunk Costs: An Analysis. [s.n.], 1992.