Cita APA

Graduate Management Admission Council & Educational Testing Service. (1986). The official guide for GMAT review (8th ed.). ETS.

Citación estilo Chicago

Graduate Management Admission Council and Educational Testing Service. The Official Guide for GMAT Review. 8th ed. Princeton, N.J: ETS, 1986.

Cita MLA

Graduate Management Admission Council and Educational Testing Service. The Official Guide for GMAT Review. 8th ed. ETS, 1986.