Cita APA (7th ed.)

HEWINGS, A., & HEWINGS, M. (2005). Grammar and context: An advanced resource book. Routledge.

Cita Chicago (17th ed.)

HEWINGS, Ann, i Martin HEWINGS. Grammar and Context: An Advanced Resource Book. London: Routledge, 2005.

Cita MLA (9th ed.)

HEWINGS, Ann, i Martin HEWINGS. Grammar and Context: An Advanced Resource Book. Routledge, 2005.