Cita APA (7a ed.)
Soars, J., & Soars, L. (1993). HEADWAY. Elementary: Workbook (1.vyd.). Oxford University Press.
Cita Chicago Style (17a ed.)
Soars, John, y Liz Soars. HEADWAY. Elementary: Workbook. 1.vyd. Oxford: Oxford University Press, 1993.
Cita MLA (9a ed.)
Soars, John, y Liz Soars. HEADWAY. Elementary: Workbook. 1.vyd. Oxford University Press, 1993.
Precaución: Estas citas no son 100% exactas.