Cita APA (7th ed.)

Soars, L., Soars John, & Hancock, P. (2023). Headway: Upper Intermadiate, Student's book (quinta edición.). Oxford University Press.

Cita Chicago (17th ed.)

Soars, Liz, Soars John, i Paul Hancock. Headway: Upper Intermadiate, Student's Book. quinta edición. Oxford, United Kingdom: Oxford University Press, 2023.

Cita MLA (9th ed.)

Soars, Liz, et al. Headway: Upper Intermadiate, Student's Book. quinta edición. Oxford University Press, 2023.