Cita APA (7a ed.)

ALEXANDER, L. (1994). Practice And Progress New Concept English: Suplementary Written & Exercises L.g. Alexander. Kanisius.

Cita Chicago Style (17a ed.)

ALEXANDER, L.G. Practice And Progress New Concept English: Suplementary Written & Exercises L.g. Alexander. Kanisius, 1994.

Cita MLA (8a ed.)

ALEXANDER, L.G. Practice And Progress New Concept English: Suplementary Written & Exercises L.g. Alexander. Kanisius, 1994.