Cita APA (7a ed.)

Thomas, C., & Grant, D. (1987). Emerald decision (Rev. ed.). Fontana ; Collins.

Cita Chicago Style (17a ed.)

Thomas, Craig, y David Grant. Emerald Decision. Rev. ed. London: Fontana ; Collins, 1987.

Cita MLA (8a ed.)

Thomas, Craig, y David Grant. Emerald Decision. Rev. ed. Fontana ; Collins, 1987.