Cita APA (7a ed.)

Forsyth, W., & Lavender, S. (1995). Grammar activities 2: Upper intermediate. Heinemann English Language Teaching.

Cita Chicago Style (17a ed.)

Forsyth, Will, y Sue Lavender. Grammar Activities 2: Upper Intermediate. Oxford: Heinemann English Language Teaching, 1995.

Cita MLA (9a ed.)

Forsyth, Will, y Sue Lavender. Grammar Activities 2: Upper Intermediate. Heinemann English Language Teaching, 1995.