Cita APA (7a ed.)

Gerngross, G., & Puchta, H. (1992). Creative grammar practice: Getting learners to use both sides of the brain. Longman.

Cita Chicago Style (17a ed.)

Gerngross, Günter, y Herbert Puchta. Creative Grammar Practice: Getting Learners to Use Both Sides of the Brain. London: Longman, 1992.

Cita MLA (9a ed.)

Gerngross, Günter, y Herbert Puchta. Creative Grammar Practice: Getting Learners to Use Both Sides of the Brain. Longman, 1992.