Cita APA (7a ed.)

Wallace, W. A., & Smith, S. D. (1991). Accounting for options, no longer an option. [s.n].

Cita Chicago Style (17a ed.)

Wallace, Wanda A., y S. Duane Smith. Accounting for Options, No Longer an Option. CCGA, Canadá: [s.n], 1991.

Cita MLA (9a ed.)

Wallace, Wanda A., y S. Duane Smith. Accounting for Options, No Longer an Option. [s.n], 1991.