Cita APA (7a ed.)

Villarreal,Omar, & Kirac,Marina. (1999). Polimodal enghish: Resource file level 3 : economics and management. Macmillan.

Cita Chicago Style (17a ed.)

Villarreal,Omar, y Kirac,Marina. Polimodal Enghish: Resource File Level 3 : Economics and Management. Macmillan, 1999.

Cita MLA (8a ed.)

Villarreal,Omar, y Kirac,Marina. Polimodal Enghish: Resource File Level 3 : Economics and Management. Macmillan, 1999.

Precaución: Estas citas no son 100% exactas.