APA-referens (7:e uppl.)

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

Chicago-referens (17:e uppl.)

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

MLA-referens (8:e uppl.)

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

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