Cita APA (7a ed.)

Watcyn-Jones, P., & Hogarth, B. (1995). Grammar games and activities for teachers. Penguin Books.

Cita Chicago Style (17a ed.)

Watcyn-Jones, Peter, y Bruce Hogarth. Grammar Games and Activities for Teachers. London: Penguin Books, 1995.

Cita MLA (9a ed.)

Watcyn-Jones, Peter, y Bruce Hogarth. Grammar Games and Activities for Teachers. Penguin Books, 1995.